<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:e3f8824f-0ca5-4a8d-9dd3-ce9fa1dbe968,g:af3ba5e1-76f5-4345-a4e1-7cbc369f5f79-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="wab-20210930.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_1d721298-9a13-4863-ac66-30a6a89736e8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_9ff91ee6-ab60-473d-b1e8-9266d7bf1f2a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1d721298-9a13-4863-ac66-30a6a89736e8" xlink:to="loc_us-gaap_Liabilities_9ff91ee6-ab60-473d-b1e8-9266d7bf1f2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_041e855f-73c3-4441-af5f-90fd2c411e73" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1d721298-9a13-4863-ac66-30a6a89736e8" xlink:to="loc_us-gaap_CommitmentsAndContingencies_041e855f-73c3-4441-af5f-90fd2c411e73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_90da1c9a-1f1e-4720-8c97-dddf45d37ca5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_1d721298-9a13-4863-ac66-30a6a89736e8" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_90da1c9a-1f1e-4720-8c97-dddf45d37ca5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_dbe29cc1-af7e-4782-a917-b3c2145a5447" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:to="loc_us-gaap_CommonStockValue_dbe29cc1-af7e-4782-a917-b3c2145a5447" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5a13752d-50a8-417f-9f2c-dc72ee32989d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5a13752d-50a8-417f-9f2c-dc72ee32989d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_d501d6d5-2209-475f-b615-475f62623c2b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:to="loc_us-gaap_TreasuryStockValue_d501d6d5-2209-475f-b615-475f62623c2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3badf907-1156-44c4-b157-a335fb8e7665" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3badf907-1156-44c4-b157-a335fb8e7665" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_128702c3-ed3d-4a81-86bb-3ce4b41d05c5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_7d1b1120-c9f8-4a1a-8b17-82f236225c8a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_128702c3-ed3d-4a81-86bb-3ce4b41d05c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_16d9f2e1-3ae1-4169-91d9-c12fb872cb4e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_LiabilitiesCurrent_16d9f2e1-3ae1-4169-91d9-c12fb872cb4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_f62518ef-eedf-4e18-9555-bcc7fcdf5a5f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_f62518ef-eedf-4e18-9555-bcc7fcdf5a5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_e44ce4cb-121e-4a07-83c5-055e0361ed2a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_e44ce4cb-121e-4a07-83c5-055e0361ed2a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_f28432d3-d699-45fd-8705-e605abbf0cd4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_f28432d3-d699-45fd-8705-e605abbf0cd4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_c5897b33-88b3-44ac-90e9-568d63592508" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_c5897b33-88b3-44ac-90e9-568d63592508" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_47ca291d-11a3-4174-8862-d11d89d70648" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_b512470b-3ba4-4c19-a8d9-3e7b87c1624d" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_47ca291d-11a3-4174-8862-d11d89d70648" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_635d5fb6-5c78-4952-99ab-e3e03aadc69f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_635d5fb6-5c78-4952-99ab-e3e03aadc69f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_aa776eac-b15d-4813-8c20-d8df0ccbeb0f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_aa776eac-b15d-4813-8c20-d8df0ccbeb0f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_c9810b02-a48f-4b57-874f-8ba6513860ec" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_c9810b02-a48f-4b57-874f-8ba6513860ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_ceeb21c7-ff5a-436c-b5f4-82f06e942db3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:to="loc_us-gaap_InventoryNet_ceeb21c7-ff5a-436c-b5f4-82f06e942db3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_1c448ef6-2719-4011-a6fa-81b0a9be890b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_fb9a7a9f-7636-4dac-bad9-38df27cbb5df" xlink:to="loc_us-gaap_OtherAssetsCurrent_1c448ef6-2719-4011-a6fa-81b0a9be890b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_86999c02-e251-4120-ace7-540801f6bce3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d5556cde-ade5-4a18-b036-35e1d247eca2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_86999c02-e251-4120-ace7-540801f6bce3" xlink:to="loc_us-gaap_StockholdersEquity_d5556cde-ade5-4a18-b036-35e1d247eca2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_210f156e-cbba-477e-aa7d-1d9aae1c7c00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_86999c02-e251-4120-ace7-540801f6bce3" xlink:to="loc_us-gaap_MinorityInterest_210f156e-cbba-477e-aa7d-1d9aae1c7c00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_b2fb5343-376b-49de-8b0f-015507f0b388" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_a6fef123-ca35-44e3-a2d7-2356bae65501" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b2fb5343-376b-49de-8b0f-015507f0b388" xlink:to="loc_us-gaap_AssetsCurrent_a6fef123-ca35-44e3-a2d7-2356bae65501" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_9f3a92a7-ede3-4358-8604-25fa6da1b625" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b2fb5343-376b-49de-8b0f-015507f0b388" xlink:to="loc_us-gaap_AssetsNoncurrent_9f3a92a7-ede3-4358-8604-25fa6da1b625" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent_74851454-21ee-4b75-adee-0f8ebf2a378a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_3cdc88d4-5de8-4ec1-860e-b4a69eac98ba" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_74851454-21ee-4b75-adee-0f8ebf2a378a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_3cdc88d4-5de8-4ec1-860e-b4a69eac98ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_dfaf5d94-e617-4085-8549-04fbc79410e7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_74851454-21ee-4b75-adee-0f8ebf2a378a" xlink:to="loc_us-gaap_Goodwill_dfaf5d94-e617-4085-8549-04fbc79410e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_f081c020-b328-469b-a2f7-73e72fb12bd8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_74851454-21ee-4b75-adee-0f8ebf2a378a" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_f081c020-b328-469b-a2f7-73e72fb12bd8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_80216fc2-529e-4ffb-8a6c-31d93af0ce78" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_74851454-21ee-4b75-adee-0f8ebf2a378a" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_80216fc2-529e-4ffb-8a6c-31d93af0ce78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_2a87837e-3ffe-4bba-9e61-1008c457bbea" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_AccountsPayableCurrent_2a87837e-3ffe-4bba-9e61-1008c457bbea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_1ff413dc-ae4b-4a2d-9223-a6d5eefe0669" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_1ff413dc-ae4b-4a2d-9223-a6d5eefe0669" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_c5fba8bb-1f43-4030-96fa-33214effcf8b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_c5fba8bb-1f43-4030-96fa-33214effcf8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_df64873c-52b2-4653-b5fd-afdddcb9e38c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_df64873c-52b2-4653-b5fd-afdddcb9e38c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_78048e8a-6248-4840-994a-9497ed23d2ba" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_LongTermDebtCurrent_78048e8a-6248-4840-994a-9497ed23d2ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_b1dfc5d9-ac41-4ae0-8f02-1ca924a33675" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_4d71023a-d63e-4e6b-a4b0-6042b561fc2c" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_b1dfc5d9-ac41-4ae0-8f02-1ca924a33675" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="simple" xlink:href="wab-20210930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOME"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_e5c485b1-61f9-43d0-8146-212bd703446f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_201934cc-754b-4b89-86bc-0f0bd1fd0dee" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_e5c485b1-61f9-43d0-8146-212bd703446f" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_201934cc-754b-4b89-86bc-0f0bd1fd0dee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_8cf2cadc-5b23-45fb-96af-481c36afc2e2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_e5c485b1-61f9-43d0-8146-212bd703446f" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_8cf2cadc-5b23-45fb-96af-481c36afc2e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_76bb2bcb-3f94-4b1a-acab-a4bab8e6397e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_461eaa78-bca2-4a68-a577-55b4a0f7e34f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_76bb2bcb-3f94-4b1a-acab-a4bab8e6397e" xlink:to="loc_us-gaap_ProfitLoss_461eaa78-bca2-4a68-a577-55b4a0f7e34f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7f7cf64f-6647-44d1-8aac-5e4efcb844a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_76bb2bcb-3f94-4b1a-acab-a4bab8e6397e" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_7f7cf64f-6647-44d1-8aac-5e4efcb844a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_514efa9a-1ab6-46e2-8e4d-50274b6fb83e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_2ee8f0f6-484a-4a8b-8a31-7d3f69a2df3c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_514efa9a-1ab6-46e2-8e4d-50274b6fb83e" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_2ee8f0f6-484a-4a8b-8a31-7d3f69a2df3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_9d49b242-6208-442c-a605-4bb4396ec2ef" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_514efa9a-1ab6-46e2-8e4d-50274b6fb83e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_9d49b242-6208-442c-a605-4bb4396ec2ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_8da0fec1-4a90-453a-b7e1-e070a725ed9f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_514efa9a-1ab6-46e2-8e4d-50274b6fb83e" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_8da0fec1-4a90-453a-b7e1-e070a725ed9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_91335454-1701-4cbe-ace7-b43a9ad52ba6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_dab83bc6-5448-4389-8ee8-af7cd40db20d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_91335454-1701-4cbe-ace7-b43a9ad52ba6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_dab83bc6-5448-4389-8ee8-af7cd40db20d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2543aeb4-afbe-4eeb-83c8-4a44d7038556" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_91335454-1701-4cbe-ace7-b43a9ad52ba6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_2543aeb4-afbe-4eeb-83c8-4a44d7038556" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4a70c394-14db-469b-85cd-6510755ba463" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_a181fd91-3378-453f-af75-3df635aef1ce" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4a70c394-14db-469b-85cd-6510755ba463" xlink:to="loc_us-gaap_OperatingIncomeLoss_a181fd91-3378-453f-af75-3df635aef1ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_68101db9-4e0e-4fd3-b4f6-41bd60542063" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4a70c394-14db-469b-85cd-6510755ba463" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_68101db9-4e0e-4fd3-b4f6-41bd60542063" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_ff039104-a3f8-42a0-bd5f-6fd5e4a1e21c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_4a70c394-14db-469b-85cd-6510755ba463" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_ff039104-a3f8-42a0-bd5f-6fd5e4a1e21c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_c4c86eea-fdf4-4e5d-9501-2f6f720d61be" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_19cffc2c-52e3-4e58-b859-0156d7fe7cb6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_c4c86eea-fdf4-4e5d-9501-2f6f720d61be" xlink:to="loc_us-gaap_GrossProfit_19cffc2c-52e3-4e58-b859-0156d7fe7cb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_e8ad40a6-7ac9-4774-896d-6053d79b7d4d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_c4c86eea-fdf4-4e5d-9501-2f6f720d61be" xlink:to="loc_us-gaap_OperatingExpenses_e8ad40a6-7ac9-4774-896d-6053d79b7d4d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="simple" xlink:href="wab-20210930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_68f0bf6f-0871-48ca-b476-e22136b15c51" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c8963a99-0506-470c-9c35-e53742d10995" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_68f0bf6f-0871-48ca-b476-e22136b15c51" xlink:to="loc_us-gaap_NetIncomeLoss_c8963a99-0506-470c-9c35-e53742d10995" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_60de5af7-fe35-45e8-b641-2bfafee543cc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_68f0bf6f-0871-48ca-b476-e22136b15c51" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_60de5af7-fe35-45e8-b641-2bfafee543cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_b4614487-a09b-42f7-aae3-e0bb8a69c18f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_a45a4beb-61a8-4dde-8a0f-1291394d957a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_b4614487-a09b-42f7-aae3-e0bb8a69c18f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_a45a4beb-61a8-4dde-8a0f-1291394d957a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_c42f92fb-3d4d-42ec-afba-ae8f492a65ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_b4614487-a09b-42f7-aae3-e0bb8a69c18f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1_c42f92fb-3d4d-42ec-afba-ae8f492a65ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_d8d8498d-df6e-4256-8dc7-9e773b6e7d07" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_0e33f688-96c6-4965-a735-1cbd5f26d1c4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_d8d8498d-df6e-4256-8dc7-9e773b6e7d07" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_0e33f688-96c6-4965-a735-1cbd5f26d1c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_18086da7-48ad-4a54-a378-2ef91f66558c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_d8d8498d-df6e-4256-8dc7-9e773b6e7d07" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax_18086da7-48ad-4a54-a378-2ef91f66558c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_1ae97b0d-affa-487c-a35f-6288ec23d2a9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_d8d8498d-df6e-4256-8dc7-9e773b6e7d07" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_1ae97b0d-affa-487c-a35f-6288ec23d2a9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="wab-20210930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8ca59ba6-856d-4fd8-b231-0ef60203a2df" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_9c4a1394-7bf8-4c14-8f90-abb1c80057af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8ca59ba6-856d-4fd8-b231-0ef60203a2df" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_9c4a1394-7bf8-4c14-8f90-abb1c80057af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4b77f90b-6a2d-47c1-a85b-a1dabdf5f60a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8ca59ba6-856d-4fd8-b231-0ef60203a2df" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4b77f90b-6a2d-47c1-a85b-a1dabdf5f60a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_3732cb33-da0b-4447-a549-5668021edafe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8ca59ba6-856d-4fd8-b231-0ef60203a2df" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_3732cb33-da0b-4447-a549-5668021edafe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_e34db908-5e35-47ef-8b22-1279cee2e7ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8053f574-4f89-46f8-83ba-7b57decfb72f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_e34db908-5e35-47ef-8b22-1279cee2e7ab" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8053f574-4f89-46f8-83ba-7b57decfb72f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f80688ef-9a13-46ea-b985-ec2603e8f991" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_e34db908-5e35-47ef-8b22-1279cee2e7ab" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f80688ef-9a13-46ea-b985-ec2603e8f991" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_001694b2-d71e-4b6f-922a-8aa1edd61fc4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_e34db908-5e35-47ef-8b22-1279cee2e7ab" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_001694b2-d71e-4b6f-922a-8aa1edd61fc4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_976d8e52-da5c-4dcd-9686-c73b2b3b2912" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_e34db908-5e35-47ef-8b22-1279cee2e7ab" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_976d8e52-da5c-4dcd-9686-c73b2b3b2912" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets_0b21d1c2-acae-48d9-b1db-fdb9d014b8ff" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets_0b21d1c2-acae-48d9-b1db-fdb9d014b8ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_9b0300d0-b1e9-412f-b94d-b37277d8c792" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_ProfitLoss_9b0300d0-b1e9-412f-b94d-b37277d8c792" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_7851a06b-c0a3-4f6e-b62a-a4c5663b416d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_DepreciationAndAmortization_7851a06b-c0a3-4f6e-b62a-a4c5663b416d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_c4f1cf3c-adba-4f4f-b7ec-778eac705fb9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_ShareBasedCompensation_c4f1cf3c-adba-4f4f-b7ec-778eac705fb9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_AmortizationOfIntangibleLiability_0d987d69-6e61-4df0-923b-324b8445b514" xlink:href="wab-20210930.xsd#wab_AmortizationOfIntangibleLiability"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_wab_AmortizationOfIntangibleLiability_0d987d69-6e61-4df0-923b-324b8445b514" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0a80410a-b3bd-4460-8b33-4d2513746484" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0a80410a-b3bd-4460-8b33-4d2513746484" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_be7ce717-dba2-4b15-b451-b72238414297" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_be7ce717-dba2-4b15-b451-b72238414297" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_2b90b183-19e9-41ba-82e9-685ad8e717ce" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_2b90b183-19e9-41ba-82e9-685ad8e717ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01244105-8022-48bb-994c-a450d06ea58d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_01244105-8022-48bb-994c-a450d06ea58d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits_489dc52b-5ad9-4773-a927-5d4ae495d81b" xlink:href="wab-20210930.xsd#wab_IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_wab_IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits_489dc52b-5ad9-4773-a927-5d4ae495d81b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_0c0f1ada-26f2-4f15-9925-6d229cc09d48" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_3b6498a3-472b-4ea2-99c3-49065c207b01" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_0c0f1ada-26f2-4f15-9925-6d229cc09d48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet_c256187c-a873-4b2c-b728-d20aa5c4b937" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet_c256187c-a873-4b2c-b728-d20aa5c4b937" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_7a12bc8f-0bd8-45d5-942c-114f558d6fab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_7a12bc8f-0bd8-45d5-942c-114f558d6fab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b494c994-3761-4997-9bdf-2b6d77ba3bdf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b494c994-3761-4997-9bdf-2b6d77ba3bdf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_8fdcb02e-daaa-44d8-a925-53a960fac004" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_8fdcb02e-daaa-44d8-a925-53a960fac004" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_7f17c86a-daeb-494f-a48c-efaa682f804b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_638555ad-6700-4018-a33a-84cf32b301a6" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_7f17c86a-daeb-494f-a48c-efaa682f804b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/AccountingPoliciesSummaryofReceivablesSoldDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#AccountingPoliciesSummaryofReceivablesSoldDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/AccountingPoliciesSummaryofReceivablesSoldDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfAccountsReceivableSecuritization_bf161d3b-7b11-40bf-9396-312526bc8992" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfAccountsReceivableSecuritization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromAccountsReceivableSecuritization_b455805f-2414-4f21-b24b-28615ec79713" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromAccountsReceivableSecuritization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProceedsFromRepaymentsOfAccountsReceivableSecuritization_bf161d3b-7b11-40bf-9396-312526bc8992" xlink:to="loc_us-gaap_ProceedsFromAccountsReceivableSecuritization_b455805f-2414-4f21-b24b-28615ec79713" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfAccountsReceivableSecuritization_da25edf3-3931-4d31-903b-064430700ecd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfAccountsReceivableSecuritization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProceedsFromRepaymentsOfAccountsReceivableSecuritization_bf161d3b-7b11-40bf-9396-312526bc8992" xlink:to="loc_us-gaap_RepaymentsOfAccountsReceivableSecuritization_da25edf3-3931-4d31-903b-064430700ecd" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/AccountingPoliciesAccumulatedOtherComprehensiveLossbyComponentNetofTaxDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#AccountingPoliciesAccumulatedOtherComprehensiveLossbyComponentNetofTaxDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/AccountingPoliciesAccumulatedOtherComprehensiveLossbyComponentNetofTaxDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ac7b9718-9e10-4d1a-a5b3-0441705db5b1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_853737aa-40a4-41d7-8f75-0f19dcad8193" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ac7b9718-9e10-4d1a-a5b3-0441705db5b1" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_853737aa-40a4-41d7-8f75-0f19dcad8193" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_896d5d4d-ac60-4341-93af-b5f47543e4ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_ac7b9718-9e10-4d1a-a5b3-0441705db5b1" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_896d5d4d-ac60-4341-93af-b5f47543e4ca" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/AcquisitionsSummaryofPreliminaryEstimatedFairValuesofAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#AcquisitionsSummaryofPreliminaryEstimatedFairValuesofAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/AcquisitionsSummaryofPreliminaryEstimatedFairValuesofAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_cdaa2e1f-7a39-439c-ac87-db079f9c56cf" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_d3f99681-188d-4a9b-a6c6-f335c4668247" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_cdaa2e1f-7a39-439c-ac87-db079f9c56cf" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_d3f99681-188d-4a9b-a6c6-f335c4668247" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities_d92bb4b2-c1a5-48a3-b6de-fea389d34298" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_cdaa2e1f-7a39-439c-ac87-db079f9c56cf" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities_d92bb4b2-c1a5-48a3-b6de-fea389d34298" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:href="wab-20210930.xsd#wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_0f9e02c4-06b8-4ba0-b0a6-06c038693c84" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_0f9e02c4-06b8-4ba0-b0a6-06c038693c84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_c7e068e8-3626-4ee9-b466-25b61e7c7b8f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_c7e068e8-3626-4ee9-b466-25b61e7c7b8f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_74486442-36a7-4d80-a5b6-95f9947a5511" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_74486442-36a7-4d80-a5b6-95f9947a5511" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_f6b0296d-b5b0-4f1a-9528-1f47bea2b51e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_f6b0296d-b5b0-4f1a-9528-1f47bea2b51e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_1e79a6c6-78e1-49a0-a89a-5c710371a7e4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_1e79a6c6-78e1-49a0-a89a-5c710371a7e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_359d817a-26d2-4cf4-95ae-203858e79963" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_Goodwill_359d817a-26d2-4cf4-95ae-203858e79963" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_6d43722a-4e73-47d9-94e1-6eadedcb3ab5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_6d43722a-4e73-47d9-94e1-6eadedcb3ab5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_5e0fa751-8604-4b2a-ab04-4576d649c495" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_206bebd5-930e-4c3d-8d70-a8837d59aad6" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_5e0fa751-8604-4b2a-ab04-4576d649c495" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_c2bfb8ea-0493-47e6-aa18-e2f7eb519e55" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_1f4c240d-5153-4cb5-8c14-c0be0e3ee456" xlink:href="wab-20210930.xsd#wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_c2bfb8ea-0493-47e6-aa18-e2f7eb519e55" xlink:to="loc_wab_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill_1f4c240d-5153-4cb5-8c14-c0be0e3ee456" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_80dc9d0d-7370-4590-8f2a-d57d2bd30a3d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_c2bfb8ea-0493-47e6-aa18-e2f7eb519e55" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_80dc9d0d-7370-4590-8f2a-d57d2bd30a3d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/InventoriesDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#InventoriesDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_d452a8c5-023f-47d1-9e82-94eaead5360b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_9f72c3ec-3110-43d8-ae35-5e69cf8017a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_d452a8c5-023f-47d1-9e82-94eaead5360b" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_9f72c3ec-3110-43d8-ae35-5e69cf8017a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_4e64fedc-2001-4381-8c07-c288ec6bcedd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_d452a8c5-023f-47d1-9e82-94eaead5360b" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_4e64fedc-2001-4381-8c07-c288ec6bcedd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_d9836ce2-0045-45e7-94d6-85129d338243" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_d452a8c5-023f-47d1-9e82-94eaead5360b" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_d9836ce2-0045-45e7-94d6-85129d338243" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/LeasesLeaseExpenseDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#LeasesLeaseExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/LeasesLeaseExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_bd1c8176-caed-42e6-8e96-f47d25d074a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_e39c2a26-9491-4870-8a71-248164cf57a3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_bd1c8176-caed-42e6-8e96-f47d25d074a7" xlink:to="loc_us-gaap_OperatingLeaseCost_e39c2a26-9491-4870-8a71-248164cf57a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_db3fb3a0-e977-439d-934c-dfc3eded87a6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_bd1c8176-caed-42e6-8e96-f47d25d074a7" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_db3fb3a0-e977-439d-934c-dfc3eded87a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_ShorttermAndVariableLeaseCost_89f1ee11-403c-4720-b1a4-b998a4ea0f8c" xlink:href="wab-20210930.xsd#wab_ShorttermAndVariableLeaseCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_bd1c8176-caed-42e6-8e96-f47d25d074a7" xlink:to="loc_wab_ShorttermAndVariableLeaseCost_89f1ee11-403c-4720-b1a4-b998a4ea0f8c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_f69f9653-0358-4708-97b1-a14ef5da02b2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubleaseIncome"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_bd1c8176-caed-42e6-8e96-f47d25d074a7" xlink:to="loc_us-gaap_SubleaseIncome_f69f9653-0358-4708-97b1-a14ef5da02b2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#LeasesMaturityofLeaseLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6e126254-2908-4dca-80c8-5cef7fd2ff3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_6e126254-2908-4dca-80c8-5cef7fd2ff3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_42ee27e9-e3ee-47cd-bb4a-1cc2eae817c5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_42ee27e9-e3ee-47cd-bb4a-1cc2eae817c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_d2f713e7-1de0-486f-b96f-99c92ff7bcf4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_d2f713e7-1de0-486f-b96f-99c92ff7bcf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_de9f0fc5-c912-4766-8748-18456df433f2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_de9f0fc5-c912-4766-8748-18456df433f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_cb633245-35ed-4419-b36a-d4c62b578a00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_cb633245-35ed-4419-b36a-d4c62b578a00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_36313c46-d6de-4d03-88ad-dda63bd3e572" xlink:href="wab-20210930.xsd#wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_bdea090f-ad13-44ed-a2bb-ff9c9adef9e8" xlink:to="loc_wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_36313c46-d6de-4d03-88ad-dda63bd3e572" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour_98e6b176-8372-4b0f-b5a4-543ceaae1c45" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_1dfd3f0f-ae30-4ace-bbf3-fadd2cb42223" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour_98e6b176-8372-4b0f-b5a4-543ceaae1c45" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_1dfd3f0f-ae30-4ace-bbf3-fadd2cb42223" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_a5473ef8-cee9-4fda-b1da-0c370b5a40f2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour_98e6b176-8372-4b0f-b5a4-543ceaae1c45" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_a5473ef8-cee9-4fda-b1da-0c370b5a40f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_2b4ef1bb-ff03-4e55-a10b-2d923857ff84" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_fb995e5c-c913-4ffa-9d77-5a0190d14698" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_2b4ef1bb-ff03-4e55-a10b-2d923857ff84" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_fb995e5c-c913-4ffa-9d77-5a0190d14698" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_d31f0a2f-daa6-427c-9ad8-7b212acc0977" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_2b4ef1bb-ff03-4e55-a10b-2d923857ff84" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_d31f0a2f-daa6-427c-9ad8-7b212acc0977" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour_264c84d7-75c2-4026-affa-bf860dc523a7" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour_fec85163-a45c-475a-935d-85bd6122d5be" xlink:href="wab-20210930.xsd#wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour_264c84d7-75c2-4026-affa-bf860dc523a7" xlink:to="loc_wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour_fec85163-a45c-475a-935d-85bd6122d5be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_973b8c66-a689-4dac-ba49-a83f88d74af3" xlink:href="wab-20210930.xsd#wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour_264c84d7-75c2-4026-affa-bf860dc523a7" xlink:to="loc_wab_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_973b8c66-a689-4dac-ba49-a83f88d74af3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear_f4e6e9fb-fb67-4072-b407-853b64e4029f" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_0de2d0c0-6450-470b-a70f-a54ee5bd5998" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear_f4e6e9fb-fb67-4072-b407-853b64e4029f" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_0de2d0c0-6450-470b-a70f-a54ee5bd5998" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_45546d83-4bb1-47ca-b18a-20d04b96ab40" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear_f4e6e9fb-fb67-4072-b407-853b64e4029f" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_45546d83-4bb1-47ca-b18a-20d04b96ab40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_691af1d3-23aa-44e2-9e0c-77636a30a79d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_691af1d3-23aa-44e2-9e0c-77636a30a79d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_aa76d4be-04fb-47bf-86c7-b403704c109f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_aa76d4be-04fb-47bf-86c7-b403704c109f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_8d4b8314-2c85-4d04-80fd-c8d64dde18f0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_8d4b8314-2c85-4d04-80fd-c8d64dde18f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_a951a337-f126-459c-a347-e0f5d4443069" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_a951a337-f126-459c-a347-e0f5d4443069" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_76e5b5dc-c975-463d-9d14-e0850f45690c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_76e5b5dc-c975-463d-9d14-e0850f45690c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour_82c42eaa-46cb-4f29-8fa1-981acb6c4d08" xlink:href="wab-20210930.xsd#wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_6b5cdab0-2424-40b1-8ec1-188383599de6" xlink:to="loc_wab_FinanceLeaseLiabilityPaymentsDueAfterYearFour_82c42eaa-46cb-4f29-8fa1-981acb6c4d08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne_d3436bed-a4ec-4b5c-987c-b3314bf99469" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_92152a6a-bfe5-4a6e-83a8-e8b87e3234fe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne_d3436bed-a4ec-4b5c-987c-b3314bf99469" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_92152a6a-bfe5-4a6e-83a8-e8b87e3234fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_206fcec6-86c7-4b45-8da8-c50cb1c91203" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne_d3436bed-a4ec-4b5c-987c-b3314bf99469" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_206fcec6-86c7-4b45-8da8-c50cb1c91203" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree_aa530a25-0d77-4ca8-ac27-70aefcf062d4" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_62f4a60d-f0d8-4e2e-a368-2b603cfeecb6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree_aa530a25-0d77-4ca8-ac27-70aefcf062d4" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_62f4a60d-f0d8-4e2e-a368-2b603cfeecb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_1199db8c-533f-4b0f-8f79-135ac41afdf9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree_aa530a25-0d77-4ca8-ac27-70aefcf062d4" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_1199db8c-533f-4b0f-8f79-135ac41afdf9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount_9ce01c68-9c3a-428a-a99e-6601238370f6" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_1bb05dd5-9427-4687-8404-d615b5a72c99" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount_9ce01c68-9c3a-428a-a99e-6601238370f6" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_1bb05dd5-9427-4687-8404-d615b5a72c99" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_1783fddb-f864-420e-ba70-5fd380d34f9e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount_9ce01c68-9c3a-428a-a99e-6601238370f6" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_1783fddb-f864-420e-ba70-5fd380d34f9e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_OperatingAndFinanceLeaseLiability_90b70691-f485-4f03-86cb-56724d61f6cd" xlink:href="wab-20210930.xsd#wab_OperatingAndFinanceLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_1802eee0-4354-40bf-9392-2f59925b99d0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_OperatingAndFinanceLeaseLiability_90b70691-f485-4f03-86cb-56724d61f6cd" xlink:to="loc_us-gaap_OperatingLeaseLiability_1802eee0-4354-40bf-9392-2f59925b99d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_0e70cd2a-2bf1-4c90-98f9-6b30ea8b65ae" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_OperatingAndFinanceLeaseLiability_90b70691-f485-4f03-86cb-56724d61f6cd" xlink:to="loc_us-gaap_FinanceLeaseLiability_0e70cd2a-2bf1-4c90-98f9-6b30ea8b65ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo_ec55c45d-dc87-4892-aebb-01c15bbd392d" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_b821ea9d-5490-4332-a64e-dca5d597a745" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo_ec55c45d-dc87-4892-aebb-01c15bbd392d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_b821ea9d-5490-4332-a64e-dca5d597a745" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_8d2b3d59-158b-4007-8568-dba4c532653d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo_ec55c45d-dc87-4892-aebb-01c15bbd392d" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_8d2b3d59-158b-4007-8568-dba4c532653d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails_1" xlink:type="simple" xlink:href="wab-20210930.xsd#LeasesMaturityofLeaseLiabilitiesDetails_1"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_ecc2cf2e-36ff-4d98-a319-d419988c21a7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_d00b3fba-9482-4d67-ae23-821a8fbc607a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_ecc2cf2e-36ff-4d98-a319-d419988c21a7" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_d00b3fba-9482-4d67-ae23-821a8fbc607a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_b296cc18-9570-45f0-bf1a-9d3b81c7f262" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_ecc2cf2e-36ff-4d98-a319-d419988c21a7" xlink:to="loc_us-gaap_OperatingLeaseLiability_b296cc18-9570-45f0-bf1a-9d3b81c7f262" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_31a7957c-2a8f-4feb-9e48-aec67a08ff3b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_43371406-2467-431f-9bb9-764c2ab329df" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_31a7957c-2a8f-4feb-9e48-aec67a08ff3b" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_43371406-2467-431f-9bb9-764c2ab329df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_aa22fcaa-88d7-475d-a808-11bf272df30b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_31a7957c-2a8f-4feb-9e48-aec67a08ff3b" xlink:to="loc_us-gaap_FinanceLeaseLiability_aa22fcaa-88d7-475d-a808-11bf272df30b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_ea741966-c553-4752-bf02-2a694fe86cf1" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount_551c0461-ed45-43bd-951d-06d99d5cf4fc" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_ea741966-c553-4752-bf02-2a694fe86cf1" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount_551c0461-ed45-43bd-951d-06d99d5cf4fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_OperatingAndFinanceLeaseLiability_3a73aaf1-6bb9-4310-98fb-e36cc0728c95" xlink:href="wab-20210930.xsd#wab_OperatingAndFinanceLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_ea741966-c553-4752-bf02-2a694fe86cf1" xlink:to="loc_wab_OperatingAndFinanceLeaseLiability_3a73aaf1-6bb9-4310-98fb-e36cc0728c95" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails_2" xlink:type="simple" xlink:href="wab-20210930.xsd#LeasesMaturityofLeaseLiabilitiesDetails_2"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/LeasesMaturityofLeaseLiabilitiesDetails_2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear_3efb5400-c6ca-4730-a5f0-3c3a800cd961" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear_3efb5400-c6ca-4730-a5f0-3c3a800cd961" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne_b0ce08c1-7854-480e-8086-83f5a795d680" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne_b0ce08c1-7854-480e-8086-83f5a795d680" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo_e9166cf5-6572-4ec2-a344-0f6cf3d02b8b" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo_e9166cf5-6572-4ec2-a344-0f6cf3d02b8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree_96a0a6a8-8e4a-4571-8a8a-42cdeada9154" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree_96a0a6a8-8e4a-4571-8a8a-42cdeada9154" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour_ff31587d-932e-4e95-acc0-f45c3ef8cd7a" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour_ff31587d-932e-4e95-acc0-f45c3ef8cd7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour_fe47e722-afac-4120-9a41-bbfc3a9577ed" xlink:href="wab-20210930.xsd#wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue_f43fecba-0ad4-4b0b-af6e-759cef6d30c0" xlink:to="loc_wab_LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour_fe47e722-afac-4120-9a41-bbfc3a9577ed" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/LongTermDebtScheduleofLongtermDebtDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#LongTermDebtScheduleofLongtermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/LongTermDebtScheduleofLongtermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_46069fd3-ecbb-4533-be34-e93c25f6295f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_4e0109a0-44e3-49a1-9f23-81ab5a646871" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_46069fd3-ecbb-4533-be34-e93c25f6295f" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_4e0109a0-44e3-49a1-9f23-81ab5a646871" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_57c4a59b-f91f-454e-b71c-5db9a3550775" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_46069fd3-ecbb-4533-be34-e93c25f6295f" xlink:to="loc_us-gaap_LongTermDebtCurrent_57c4a59b-f91f-454e-b71c-5db9a3550775" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/EarningsPerShareComputationofEarningsPerShareDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#EarningsPerShareComputationofEarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/EarningsPerShareComputationofEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarnings_9f9da9ff-d133-49e5-ae7d-26315beb452b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UndistributedEarnings"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_2d8c5d7f-7827-4cfa-9adf-e69df9c9a237" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UndistributedEarnings_9f9da9ff-d133-49e5-ae7d-26315beb452b" xlink:to="loc_us-gaap_NetIncomeLoss_2d8c5d7f-7827-4cfa-9adf-e69df9c9a237" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockStock_6a171467-b28f-4408-9db8-7b31c81172fa" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DividendsCommonStockStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UndistributedEarnings_9f9da9ff-d133-49e5-ae7d-26315beb452b" xlink:to="loc_us-gaap_DividendsCommonStockStock_6a171467-b28f-4408-9db8-7b31c81172fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_fac61eaf-c5ab-4b73-b7f3-15ea96699128" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b67945af-0899-450f-a7f6-45153ae6fdb4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_fac61eaf-c5ab-4b73-b7f3-15ea96699128" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b67945af-0899-450f-a7f6-45153ae6fdb4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_b2fcc5b7-b574-41b0-adfb-dfc6ca562c43" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_fac61eaf-c5ab-4b73-b7f3-15ea96699128" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_b2fcc5b7-b574-41b0-adfb-dfc6ca562c43" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/DerivativeFinancialInstrumentsandHedgingSummaryofNotionalAmountsandFairValueDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#DerivativeFinancialInstrumentsandHedgingSummaryofNotionalAmountsandFairValueDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/DerivativeFinancialInstrumentsandHedgingSummaryofNotionalAmountsandFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_4f79b572-2afe-4f1f-bb70-7da91851bf10" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_ac03ddfe-c54c-44af-9e40-4b3d2312a284" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeNet_4f79b572-2afe-4f1f-bb70-7da91851bf10" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_ac03ddfe-c54c-44af-9e40-4b3d2312a284" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_413cd047-2cfb-4d41-a84f-67530d55e35a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeNet_4f79b572-2afe-4f1f-bb70-7da91851bf10" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_413cd047-2cfb-4d41-a84f-67530d55e35a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.wabtec.com/role/OtherIncomeNetDetails" xlink:type="simple" xlink:href="wab-20210930.xsd#OtherIncomeNetDetails"/>
  <link:calculationLink xlink:role="http://www.wabtec.com/role/OtherIncomeNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_3d21e2e2-18ee-4106-9ead-2252223e10ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_wab_PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent_e16392a6-7723-452c-ac77-4db444d3ebff" xlink:href="wab-20210930.xsd#wab_PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3d21e2e2-18ee-4106-9ead-2252223e10ca" xlink:to="loc_wab_PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent_e16392a6-7723-452c-ac77-4db444d3ebff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_f8605016-bebc-40e0-9f5f-c98de35ed1f3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3d21e2e2-18ee-4106-9ead-2252223e10ca" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_f8605016-bebc-40e0-9f5f-c98de35ed1f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_31f9fe64-1ac4-4dc9-901d-df4236ca567f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3d21e2e2-18ee-4106-9ead-2252223e10ca" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_31f9fe64-1ac4-4dc9-901d-df4236ca567f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossRealized_a869b862-22ec-45ab-8e02-72ef3e43195c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossRealized"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_3d21e2e2-18ee-4106-9ead-2252223e10ca" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossRealized_a869b862-22ec-45ab-8e02-72ef3e43195c" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
