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XCalcPro brings together practical calculators, templates, and engineering tools for Mechanical and Piping engineers.
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Browse online calculators by discipline or explore our store for ready-to-use Excel templates and premium tools.
Mechanical Calculators
Practical tools for pumps, rotating equipment, heat, and general mechanical engineering calculations.
Piping Calculators
Tools for pipe sizing, pressure drop, valve sizing, hydrotest pressure, pipe wall thickness, and other piping engineering calculations.
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A selection of the tools engineers reach for most often.
Maximum allowable pipe support spacing based on bending stress and mid-span deflection.
Calculate the minimum required pipe wall thickness for internal pressure per ASME B31.3.
Estimate frictional pressure loss along a pipe using the Darcy–Weisbach equation.
Convert pressure, flow, temperature, length, and other common engineering units.
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Ready-to-use Excel templates, calculation sheets, and tools from the XCalcPro Store.
Piping Calculation Excel Template
Ready-to-use Excel workbook for pipe sizing, pressure drop, and hydrotest calculations with documented formulas.
View in StoreEngineering Cost Estimate Workbook
Structured workbook for preparing engineering cost estimates with material take-off and rate build-up.
View in StorePump Calculation Sheet
Pump hydraulic calculation sheet covering TDH, NPSHa, and power for centrifugal pump duty points.
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Built for engineers, by engineers
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Tools built for real engineering work — clear inputs, clear outputs, no clutter.
One hub, many disciplines
Mechanical and Piping calculation tools linked together in a single place.
Standards-aware
Calculations reference recognised methods such as ASME B31.3 and Darcy–Weisbach.
Always expanding
New calculators, templates, and articles are added across the ecosystem.
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Latest engineering articles
Short, practical explanations of common engineering calculations.
ออกแบบ pressure vessel ตั้งแต่ design data จนถึงความหนาของ shell และ head ตาม ASME Sec VIII Div 1 พร้อมสูตร ตาราง allowable stress และตัวอย่างคำนวณจริง
Read article→ทำความเข้าใจหลักการเลือกขนาดท่อจาก flow rate และ velocity พร้อมสมการพื้นฐานที่วิศวกรใช้จริง
Read article→Darcy–Weisbach equation และวิธีประเมินการสูญเสียความดันในท่อสำหรับงานออกแบบระบบ
Read article→Start calculating with XCalcPro
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