Pump Selection Calculator
Calculate pump motor power from flow rate, total head, and pump efficiency.
How to Use the Pump Selection Calculator
- Enter the required flow rate in L/s.
- Enter total dynamic head in metres.
- Enter expected pump efficiency.
- Review motor power and brake horsepower.
Casos de Uso
- •Water supply pump sizing
- •Irrigation system design
- •HVAC chilled water pumps
Fórmula
P = (ρgQH) / (η × 1000)
Preguntas Frecuentes
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.