Plumbing & HVAC Calculators
Comprehensive collection of plumbing and HVAC calculators for pipe sizing, ductwork, flow rates, pressure drops, and more. Essential tools for contractors, engineers, and DIY home improvement projects.
Pipe & Tube
Pipe sizing, volume, weight, expansion, pressure ratingsFlow Rate
Water flow, GPM calculations, pipe flow, orifice flowPressure
Pressure drop, head loss, pump head, pressure conversionHVAC
Duct sizing, BTU calculations, load calculations, A/C sizingPump Calculators
Pump sizing, power requirements, efficiency, selectionWater Heaters
Sizing, recovery rates, energy usage, cost analysisDrainage
Drain pipe sizing, slope requirements, gutter sizingBoiler Calculators
Boiler sizing, efficiency, fuel consumption, steam calculationsHeat Loss/Gain
Building heat loss, heat transfer, insulation valuesRefrigeration
Cooling load, refrigerant charge, compressor sizingUnit Conversion
Pressure, flow, temperature, length, area, volume conversionsNeed professional plumbing or HVAC advice?
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