Engineering calculators
Sizing a pump, a pipe run or a feed system means working the same handful of fluid equations correctly every time. The tools in this group keep SI units as the default, show the governing formula next to the answer, and include the reference values — Hazen-Williams C-factors, water properties, motor service factors — that a design check would demand.
Boiler Feed Pump CalculatorFlow, TDH, shaft power and motor size from boiler capacity.Pipe Diameter CalculatorMinimum internal diameter from flow rate and target velocity.Pressure Drop CalculatorHazen-Williams head loss with a full C-factor reference table.Pump Flow Rate CalculatorFlow from volume ÷ time or from pipe diameter × velocity.