Piping & Mechanical Calculators

Pipe volume, thermal expansion, hydronic flow, pump head and power.

Pipe Volume

Calculate fluid volume in a pipe in US gallons and litres from inside diameter and length.

Thermal Expansion

Calculate linear thermal expansion of copper, steel, stainless, PVC, CPVC and PEX pipe.

Hydronic GPM

Calculate hydronic water flow in GPM and L/s from heat load and temperature drop (BTU/h = 500 × GPM × ΔT).

Pump Head

Convert pump differential pressure to feet and metres of head, with specific gravity correction.

Pump Power

Calculate pump brake horsepower from flow, head, specific gravity and efficiency.

HX Effectiveness

Calculate heat exchanger effectiveness from inlet and outlet temperatures (cold side as minimum capacity).

Pipe Schedule Chart (OD, ID, Wall, Weight)

Pipe Schedule Chart (OD, ID, Wall, Weight) — coming soon to Welcome to HVAC once verified reference data is in place.

Bolt Torque & Preload Reference

Bolt Torque & Preload Reference — coming soon to Welcome to HVAC once verified reference data is in place.