Centrifugal Pump Calculator

Calculate pump head, power, efficiency, and specific speed for centrifugal pump selection and sizing.

Required volume flow rate.
L/s
Total head including static lift + friction + velocity.
m
Water: 998 kg/m³.
kg/m³
Typical centrifugal: 60-85%.
Impeller speed. 2-pole: 2900, 4-pole: 1450 rpm.
rpm

Results

Water/Hydraulic Power-kW
Shaft Power (BHP)-kW
Specific Speed Ns-
Suggested Pump Type-
References: Hydraulic Institute Standards; Karassik — Pump Handbook