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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e2cd2-ff82-7ba0-832f-852783b723cc,g:f6a1ec10-00c0-4cb9-a7a6-67727896722f-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.amtexinc.com/role/ConsolidatedStatementofIncome" xlink:type="simple" xlink:href="ame-20260630.xsd#ConsolidatedStatementofIncome"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/ConsolidatedStatementofIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e2cd3-0125-7092-a5fd-53c08e43449f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019e2cd3-0125-7132-8b2d-4d19daf0f20a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e2cd3-0125-7092-a5fd-53c08e43449f" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019e2cd3-0125-7132-8b2d-4d19daf0f20a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2cd3-0125-73fa-905f-e53c412b33fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e2cd3-0125-7092-a5fd-53c08e43449f" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e2cd3-0125-73fa-905f-e53c412b33fc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e2cd3-0125-7b5b-983e-078380e19ccc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2cd3-0125-7345-b00c-46a91a8b4263" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e2cd3-0125-7b5b-983e-078380e19ccc" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e2cd3-0125-7345-b00c-46a91a8b4263" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e2cd3-0125-732e-b868-d5f982802aa1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e2cd3-0125-7b5b-983e-078380e19ccc" xlink:to="loc_us-gaap_CostsAndExpenses_019e2cd3-0125-732e-b868-d5f982802aa1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2cd3-0125-78d4-8335-c436845ea67b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-77b2-99ae-802d87d41326" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2cd3-0125-78d4-8335-c436845ea67b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-77b2-99ae-802d87d41326" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e2cd3-0125-7237-a226-2924f1e36b40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e2cd3-0125-78d4-8335-c436845ea67b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e2cd3-0125-7237-a226-2924f1e36b40" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-7b3e-b5c8-4712e4e2d278" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e2cd3-0125-773a-9148-660ca869fcfa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-7b3e-b5c8-4712e4e2d278" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e2cd3-0125-773a-9148-660ca869fcfa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019e2cd3-0125-7bba-ae71-f6dfbfb8a49e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-7b3e-b5c8-4712e4e2d278" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019e2cd3-0125-7bba-ae71-f6dfbfb8a49e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2cd3-0125-7e9c-b182-b64b9f731f2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e2cd3-0125-7b3e-b5c8-4712e4e2d278" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e2cd3-0125-7e9c-b182-b64b9f731f2b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/ConsolidatedStatementofComprehensiveIncome" xlink:type="simple" xlink:href="ame-20260630.xsd#ConsolidatedStatementofComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/ConsolidatedStatementofComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2cd3-0125-718d-9a25-83e4e6ffe346" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e2cd3-0125-7446-80b2-6da80f6ce41a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2cd3-0125-718d-9a25-83e4e6ffe346" xlink:to="loc_us-gaap_NetIncomeLoss_019e2cd3-0125-7446-80b2-6da80f6ce41a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7ef0-8b5a-d86e50bff89e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019e2cd3-0125-718d-9a25-83e4e6ffe346" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7ef0-8b5a-d86e50bff89e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7dc1-91c1-bfefd74dd1bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_019e2cd3-0125-73fe-927a-cb8d5ffc4f8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7dc1-91c1-bfefd74dd1bb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax_019e2cd3-0125-73fe-927a-cb8d5ffc4f8c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_OtherComprehensiveIncomeLossForeignCurrencyTranslationChangeInLongtermIntercompanyNotes_019e2cd3-0125-7bb9-ad43-bac91c9225af" xlink:href="ame-20260630.xsd#ame_OtherComprehensiveIncomeLossForeignCurrencyTranslationChangeInLongtermIntercompanyNotes"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7dc1-91c1-bfefd74dd1bb" xlink:to="loc_ame_OtherComprehensiveIncomeLossForeignCurrencyTranslationChangeInLongtermIntercompanyNotes_019e2cd3-0125-7bb9-ad43-bac91c9225af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax_019e2cd3-0125-7a10-af6e-e8060e1cc4eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7dc1-91c1-bfefd74dd1bb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax_019e2cd3-0125-7a10-af6e-e8060e1cc4eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019e2cd3-0125-76d4-8cbd-ddeb430479eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019e2cd3-0125-7dc1-91c1-bfefd74dd1bb" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax_019e2cd3-0125-76d4-8cbd-ddeb430479eb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/ConsolidatedBalanceSheet" xlink:type="simple" xlink:href="ame-20260630.xsd#ConsolidatedBalanceSheet"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/ConsolidatedBalanceSheet" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2cd3-0125-70a4-84fb-b88d0964db5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_AssetsCurrent_019e2cd3-0125-70a4-84fb-b88d0964db5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019e2cd3-0125-7a04-a31d-31f089a7df37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019e2cd3-0125-7a04-a31d-31f089a7df37" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e2cd3-0125-791b-bd63-a8e0582026e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e2cd3-0125-791b-bd63-a8e0582026e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e2cd3-0125-772f-8b9f-c3ff5f581cea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_Goodwill_019e2cd3-0125-772f-8b9f-c3ff5f581cea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e2cd3-0125-7b50-bb6b-7e591df0a331" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e2cd3-0125-7b50-bb6b-7e591df0a331" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsAndOtherNoncurrentAssets_019e2cd3-0125-71c7-940b-5dcd67952980" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsAndOtherNoncurrentAssets"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e2cd3-0125-7ebc-828c-ba845a9d7fd6" xlink:to="loc_us-gaap_InvestmentsAndOtherNoncurrentAssets_019e2cd3-0125-71c7-940b-5dcd67952980" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2cd3-0125-77e3-8b6c-2e75463b0010" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7a82-be34-ae88642eea5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2cd3-0125-77e3-8b6c-2e75463b0010" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7a82-be34-ae88642eea5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019e2cd3-0125-7f1c-9da6-1a1b984038af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2cd3-0125-77e3-8b6c-2e75463b0010" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019e2cd3-0125-7f1c-9da6-1a1b984038af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2cd3-0125-7c12-b02e-56e1e34a4ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2cd3-0125-77e3-8b6c-2e75463b0010" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e2cd3-0125-7c12-b02e-56e1e34a4ee6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019e2cd3-0125-773a-bce9-0ea26f1a78f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e2cd3-0125-77e3-8b6c-2e75463b0010" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019e2cd3-0125-773a-bce9-0ea26f1a78f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2cd3-0125-7f14-ab9e-19ba61ce2b21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e2cd3-0125-7e40-afed-e2ae8837d129" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2cd3-0125-7f14-ab9e-19ba61ce2b21" xlink:to="loc_us-gaap_Liabilities_019e2cd3-0125-7e40-afed-e2ae8837d129" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7c3b-bdff-174ac4af3fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e2cd3-0125-7f14-ab9e-19ba61ce2b21" xlink:to="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7c3b-bdff-174ac4af3fd2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e2cd3-0125-70a1-8b76-569d21d4084d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:to="loc_us-gaap_CommonStockValue_019e2cd3-0125-70a1-8b76-569d21d4084d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2cd3-0125-7907-b5da-d15c6f21512d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019e2cd3-0125-7907-b5da-d15c6f21512d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2cd3-0125-7e91-b16f-f4af89f9217c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e2cd3-0125-7e91-b16f-f4af89f9217c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e2cd3-0125-752e-b51a-075d7f75442f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019e2cd3-0125-752e-b51a-075d7f75442f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_019e2cd3-0125-7b2a-9566-562051218cf5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e2cd3-0125-7198-8ff1-94a7f75de251" xlink:to="loc_us-gaap_TreasuryStockValue_019e2cd3-0125-7b2a-9566-562051218cf5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e2cd3-0125-76bf-b140-2472a80f1864" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e2cd3-0125-78b9-b92a-53715c5951f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2cd3-0125-76bf-b140-2472a80f1864" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e2cd3-0125-78b9-b92a-53715c5951f4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesNetCurrent_019e2cd3-0125-7cc6-9c90-c594da90b3ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2cd3-0125-76bf-b140-2472a80f1864" xlink:to="loc_us-gaap_ReceivablesNetCurrent_019e2cd3-0125-7cc6-9c90-c594da90b3ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2cd3-0125-7d47-97c2-96aa8e8ce1e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2cd3-0125-76bf-b140-2472a80f1864" xlink:to="loc_us-gaap_InventoryNet_019e2cd3-0125-7d47-97c2-96aa8e8ce1e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019e2cd3-0125-7b53-a283-0834ad673693" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e2cd3-0125-76bf-b140-2472a80f1864" xlink:to="loc_us-gaap_OtherAssetsCurrent_019e2cd3-0125-7b53-a283-0834ad673693" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019e2cd3-0125-7d1b-bd01-16562b232e92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:to="loc_us-gaap_DebtCurrent_019e2cd3-0125-7d1b-bd01-16562b232e92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019e2cd3-0125-7043-bbe8-aba4191b4d43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:to="loc_us-gaap_AccountsPayableCurrent_019e2cd3-0125-7043-bbe8-aba4191b4d43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2cd3-0125-7060-b1ce-f773fba1353a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e2cd3-0125-7060-b1ce-f773fba1353a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019e2cd3-0125-7805-a804-75e821271ba0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019e2cd3-0125-7805-a804-75e821271ba0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019e2cd3-0125-7fa2-b348-85eaf095feb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedLiabilitiesAndOtherLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e2cd3-0125-7b17-85da-fb036db2515a" xlink:to="loc_us-gaap_AccruedLiabilitiesAndOtherLiabilities_019e2cd3-0125-7fa2-b348-85eaf095feb3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/CondensedConsolidatedStatementofCashFlows" xlink:type="simple" xlink:href="ame-20260630.xsd#CondensedConsolidatedStatementofCashFlows"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/CondensedConsolidatedStatementofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_019e2cd3-0125-7b89-926f-2c95cd291256" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_019e2cd3-0125-7b89-926f-2c95cd291256" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e2cd3-0125-786c-a7b9-c1522f40a949" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e2cd3-0125-786c-a7b9-c1522f40a949" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019e2cd3-0125-7c21-b66b-503edef87b09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019e2cd3-0125-7c21-b66b-503edef87b09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_019e2cd3-0125-72b3-8a48-98db079f6e51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_019e2cd3-0125-72b3-8a48-98db079f6e51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e2cd3-0125-7324-98a4-4be1d762817d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019e2cd3-0125-7324-98a4-4be1d762817d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019eb032-44c5-7c6c-ab20-713526e39510" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019eb032-44c5-7c6c-ab20-713526e39510" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_019fa837-1adf-7a6a-9a83-b5c57cd62fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-77f7-84c0-729d247c54d4" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_019fa837-1adf-7a6a-9a83-b5c57cd62fa5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2cd3-0125-739f-8bb6-e9f2a785ba01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2cd3-0125-7e6a-b397-458eebbd42f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2cd3-0125-739f-8bb6-e9f2a785ba01" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e2cd3-0125-7e6a-b397-458eebbd42f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-753d-a40c-9af2cb87e8a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2cd3-0125-739f-8bb6-e9f2a785ba01" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-753d-a40c-9af2cb87e8a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7adc-9b58-8286c328b666" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2cd3-0125-739f-8bb6-e9f2a785ba01" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7adc-9b58-8286c328b666" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-70d6-99a4-a0cd537cce15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e2cd3-0125-739f-8bb6-e9f2a785ba01" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e2cd3-0125-70d6-99a4-a0cd537cce15" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e2cd3-0125-72a3-9513-8d32330bca5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_ProfitLoss_019e2cd3-0125-72a3-9513-8d32330bca5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019e2cd3-0125-7a4e-a9cd-9495321bd62f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_DepreciationAndAmortization_019e2cd3-0125-7a4e-a9cd-9495321bd62f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_019e2cd3-0125-7e95-9ee6-6f8420fcc87e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_019e2cd3-0125-7e95-9ee6-6f8420fcc87e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-763a-b481-695a5b158211" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-763a-b481-695a5b158211" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019e2cd3-0125-70e6-a9e8-090f44ab1781" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingCapital"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapital_019e2cd3-0125-70e6-a9e8-090f44ab1781" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionContributions_019e2cd3-0125-78f3-81c2-ddc3f3272beb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionContributions"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_PensionContributions_019e2cd3-0125-78f3-81c2-ddc3f3272beb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019e2cd3-0125-7bcf-99c7-30de135f332e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019e2cd3-0125-7bcf-99c7-30de135f332e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_GainLossOnSaleOfFacilities_019eb031-5659-7727-b71d-0c32e5af2877" xlink:href="ame-20260630.xsd#ame_GainLossOnSaleOfFacilities"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e2cd3-0125-77a3-910a-896dbaa96eca" xlink:to="loc_ame_GainLossOnSaleOfFacilities_019eb031-5659-7727-b71d-0c32e5af2877" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7f64-8691-731b9da3b849" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e2cd3-0125-7637-89df-d2973caed287" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7f64-8691-731b9da3b849" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e2cd3-0125-7637-89df-d2973caed287" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019e2cd3-0125-7a50-bf72-1afe4bb077d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7f64-8691-731b9da3b849" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019e2cd3-0125-7a50-bf72-1afe4bb077d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e2cd3-0125-7862-bf29-019fc4ea287b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7f64-8691-731b9da3b849" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_019e2cd3-0125-7862-bf29-019fc4ea287b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_ProceedsFromSaleOfFacilities_019eb031-7d1a-7fdf-8a12-63da4502e241" xlink:href="ame-20260630.xsd#ame_ProceedsFromSaleOfFacilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e2cd3-0125-7f64-8691-731b9da3b849" xlink:to="loc_ame_ProceedsFromSaleOfFacilities_019eb031-7d1a-7fdf-8a12-63da4502e241" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/RevenuesScheduleofOutstandingContractAssetandLiabilityAccountsDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#RevenuesScheduleofOutstandingContractAssetandLiabilityAccountsDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/RevenuesScheduleofOutstandingContractAssetandLiabilityAccountsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ame_NetIncreaseDecreaseInContractWithCustomerAssetsLiabilities_019e2cd3-0125-7431-ab9b-4550f2e9116e" xlink:href="ame-20260630.xsd#ame_NetIncreaseDecreaseInContractWithCustomerAssetsLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_019e2cd3-0125-77fb-aea7-848c444e9cf0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ame_NetIncreaseDecreaseInContractWithCustomerAssetsLiabilities_019e2cd3-0125-7431-ab9b-4550f2e9116e" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_019e2cd3-0125-77fb-aea7-848c444e9cf0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e2cd3-0125-79ea-b49f-b62de6ed30d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_ame_NetIncreaseDecreaseInContractWithCustomerAssetsLiabilities_019e2cd3-0125-7431-ab9b-4550f2e9116e" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e2cd3-0125-79ea-b49f-b62de6ed30d1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2cd3-0125-7c42-a069-1af1599190ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2cd3-0125-7dea-bcd7-f0d0c0aa4366" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2cd3-0125-7c42-a069-1af1599190ba" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e2cd3-0125-7dea-bcd7-f0d0c0aa4366" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2cd3-0125-7ff5-b1b7-9adfc5bacfea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e2cd3-0125-7c42-a069-1af1599190ba" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e2cd3-0125-7ff5-b1b7-9adfc5bacfea" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/InventoriesnetDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#InventoriesnetDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/InventoriesnetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019e2cd3-0125-7682-a3d5-8121388b1b98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019e2cd3-0125-780b-aa9f-3cf61f8365da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2cd3-0125-7682-a3d5-8121388b1b98" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_019e2cd3-0125-780b-aa9f-3cf61f8365da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019e2cd3-0125-7e34-a83c-509c25cfc53b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2cd3-0125-7682-a3d5-8121388b1b98" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_019e2cd3-0125-7e34-a83c-509c25cfc53b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019e2cd3-0125-7a7f-94c8-8d712f3c955e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_019e2cd3-0125-7682-a3d5-8121388b1b98" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_019e2cd3-0125-7a7f-94c8-8d712f3c955e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofComponentsofLeaseExpenseDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#LeasesandOtherCommitmentsScheduleofComponentsofLeaseExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofComponentsofLeaseExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019e2cd3-0125-7090-a5b7-96e5e3dfaaec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019e2cd3-0125-7115-a3f7-e3ea6a4bce54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019e2cd3-0125-7090-a5b7-96e5e3dfaaec" xlink:to="loc_us-gaap_OperatingLeaseCost_019e2cd3-0125-7115-a3f7-e3ea6a4bce54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_019e2cd3-0125-72d8-a7d2-2c2ac9d10cb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_019e2cd3-0125-7090-a5b7-96e5e3dfaaec" xlink:to="loc_us-gaap_VariableLeaseCost_019e2cd3-0125-72d8-a7d2-2c2ac9d10cb9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofSupplementalBalanceSheetInformationRelatedtoLeasesDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#LeasesandOtherCommitmentsScheduleofSupplementalBalanceSheetInformationRelatedtoLeasesDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofSupplementalBalanceSheetInformationRelatedtoLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019e2cd3-0125-7f31-91f3-3ae6fd0ff8e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e2cd3-0125-72a7-9ccf-0f15a40af688" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_019e2cd3-0125-7f31-91f3-3ae6fd0ff8e3" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e2cd3-0125-72a7-9ccf-0f15a40af688" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e2cd3-0125-7d0b-8105-918f9d3eb12e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_019e2cd3-0125-7f31-91f3-3ae6fd0ff8e3" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e2cd3-0125-7d0b-8105-918f9d3eb12e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7268-be53-9fcf332fa42b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019e2cd3-0125-710e-8572-534a41bb2ce4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7268-be53-9fcf332fa42b" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019e2cd3-0125-710e-8572-534a41bb2ce4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019e2cd3-0125-742b-8f00-c9f67d96f19f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7268-be53-9fcf332fa42b" xlink:to="loc_us-gaap_OperatingLeaseLiability_019e2cd3-0125-742b-8f00-c9f67d96f19f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails_1" xlink:type="simple" xlink:href="ame-20260630.xsd#LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails_1"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/LeasesandOtherCommitmentsScheduleofMaturitiesofleaseliabilitiesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019e2cd3-0125-7cec-9882-f8c0bcbd05fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019e2cd3-0125-7cec-9882-f8c0bcbd05fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019e2cd3-0125-77bf-8e38-94696475ea16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019e2cd3-0125-77bf-8e38-94696475ea16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019e2cd3-0125-7f9a-9050-2ca51a43f926" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019e2cd3-0125-7f9a-9050-2ca51a43f926" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019e2cd3-0125-786f-8a22-138943fb27ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019e2cd3-0125-786f-8a22-138943fb27ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019e2cd3-0125-7ba3-bbd4-a240009bfb7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019e2cd3-0125-7ba3-bbd4-a240009bfb7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_019e2cd3-0125-7823-bde4-3815cbbd5cc6" xlink:href="ame-20260630.xsd#ame_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019e2cd3-0125-7ad9-b13f-7e0d578c7a79" xlink:to="loc_ame_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_019e2cd3-0125-7823-bde4-3815cbbd5cc6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/AcquisitionsScheduleofAllocationofAggregatePurchasePriceofAcquiredNetAssetsDetail" xlink:type="simple" xlink:href="ame-20260630.xsd#AcquisitionsScheduleofAllocationofAggregatePurchasePriceofAcquiredNetAssetsDetail"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/AcquisitionsScheduleofAllocationofAggregatePurchasePriceofAcquiredNetAssetsDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019e2cd3-0125-7566-b427-dbccce3c78e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019e2cd3-0125-7566-b427-dbccce3c78e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e2cd3-0125-7900-b66d-fd37968f3cba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:to="loc_us-gaap_Goodwill_019e2cd3-0125-7900-b66d-fd37968f3cba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019e2cd3-0125-7f58-9fe9-94342faa2f7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_019e2cd3-0125-7f58-9fe9-94342faa2f7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019e2cd3-0125-7683-9f92-be744506519f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_019e2cd3-0125-7683-9f92-be744506519f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_BusinessCombinationRecognizedLiabilityAssumedNetWorkingCapitalAndOther_019e2cd3-0125-77dc-8e0a-d6f8d995e0c0" xlink:href="ame-20260630.xsd#ame_BusinessCombinationRecognizedLiabilityAssumedNetWorkingCapitalAndOther"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019e2cd3-0125-7b71-aa9a-24c9b5020628" xlink:to="loc_ame_BusinessCombinationRecognizedLiabilityAssumedNetWorkingCapitalAndOther_019e2cd3-0125-77dc-8e0a-d6f8d995e0c0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/ShareBasedCompensationScheduleofShareBasedCompensationExpenseDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#ShareBasedCompensationScheduleofShareBasedCompensationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/ShareBasedCompensationScheduleofShareBasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-71db-a4f6-86883c08b6c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionPlanExpense_019e2cd3-0125-76e2-a8e8-aa88aa261f55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockOptionPlanExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-71db-a4f6-86883c08b6c0" xlink:to="loc_us-gaap_StockOptionPlanExpense_019e2cd3-0125-76e2-a8e8-aa88aa261f55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockExpense_019e2cd3-0125-7f33-97d9-bce523af6da2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-71db-a4f6-86883c08b6c0" xlink:to="loc_us-gaap_RestrictedStockExpense_019e2cd3-0125-7f33-97d9-bce523af6da2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_PerformanceRestrictedStockUnitExpense_019e2cd3-0125-7ee1-a6da-b7e4160929cf" xlink:href="ame-20260630.xsd#ame_PerformanceRestrictedStockUnitExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ShareBasedCompensation_019e2cd3-0125-71db-a4f6-86883c08b6c0" xlink:to="loc_ame_PerformanceRestrictedStockUnitExpense_019e2cd3-0125-7ee1-a6da-b7e4160929cf" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/RetirementandPensionPlansScheduleofComponentsofNetPeriodicPensionBenefitExpenseIncomeDetails" xlink:type="simple" xlink:href="ame-20260630.xsd#RetirementandPensionPlansScheduleofComponentsofNetPeriodicPensionBenefitExpenseIncomeDetails"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/RetirementandPensionPlansScheduleofComponentsofNetPeriodicPensionBenefitExpenseIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_019e2cd3-0125-7ad2-9c8b-0430d46459b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7d88-80b9-1c7bab696cf3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_019e2cd3-0125-7ad2-9c8b-0430d46459b3" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7d88-80b9-1c7bab696cf3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPostretirementBenefitExpense_019e2cd3-0125-7a73-8d48-b46683a84477" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherPostretirementBenefitExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_019e2cd3-0125-7ad2-9c8b-0430d46459b3" xlink:to="loc_us-gaap_OtherPostretirementBenefitExpense_019e2cd3-0125-7a73-8d48-b46683a84477" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPostretirementBenefitExpense_019e2cd3-0125-7ee0-986b-f1e01b745599" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherPostretirementBenefitExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_019e2cd3-0125-7724-8755-ab53d600d94f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherPostretirementBenefitExpense_019e2cd3-0125-7ee0-986b-f1e01b745599" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_019e2cd3-0125-7724-8755-ab53d600d94f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_ame_ForeignPlansAndOther_019e2cd3-0125-737c-b3ab-75b9eb04f913" xlink:href="ame-20260630.xsd#ame_ForeignPlansAndOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherPostretirementBenefitExpense_019e2cd3-0125-7ee0-986b-f1e01b745599" xlink:to="loc_ame_ForeignPlansAndOther_019e2cd3-0125-737c-b3ab-75b9eb04f913" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7e64-adb2-309df641cef0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_019e2cd3-0125-75dd-9ade-138d55ad6d05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7e64-adb2-309df641cef0" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_019e2cd3-0125-75dd-9ade-138d55ad6d05" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_019e2cd3-0125-7e26-a8a0-3dd34c5786a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7e64-adb2-309df641cef0" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_019e2cd3-0125-7e26-a8a0-3dd34c5786a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e2cd3-0125-768b-8e72-5f81b07a349b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7e64-adb2-309df641cef0" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_019e2cd3-0125-768b-8e72-5f81b07a349b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e2cd3-0125-7054-84ef-e32c01854bb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_019e2cd3-0125-7e64-adb2-309df641cef0" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_019e2cd3-0125-7054-84ef-e32c01854bb4" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.amtexinc.com/role/ReportableSegmentsScheduleofReportableSegmentFinancialInformationDetail" xlink:type="simple" xlink:href="ame-20260630.xsd#ReportableSegmentsScheduleofReportableSegmentFinancialInformationDetail"/>
  <link:calculationLink xlink:role="http://www.amtexinc.com/role/ReportableSegmentsScheduleofReportableSegmentFinancialInformationDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019e2cd3-0126-724f-87e9-89739e548100" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_019e2cd3-0126-721f-a915-2dc21dc4e695" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentForAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DepreciationAndAmortization_019e2cd3-0126-724f-87e9-89739e548100" xlink:to="loc_us-gaap_AdjustmentForAmortization_019e2cd3-0126-721f-a915-2dc21dc4e695" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationNonproduction_019e2cd3-0126-7505-bc65-01a44e9ea1a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationNonproduction"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DepreciationAndAmortization_019e2cd3-0126-724f-87e9-89739e548100" xlink:to="loc_us-gaap_DepreciationNonproduction_019e2cd3-0126-7505-bc65-01a44e9ea1a2" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
