Fluids, hydraulics and flows
Pump efficiency
Calculates efficiency from hydraulic power and shaft power.
Related calculators
Pump hydraulic power
Calculates hydraulic power from density, gravity, flow rate, and pump head.
Pump shaft power
Calculates required shaft power from hydraulic power and efficiency.
NPSHa and NPSH margin
Calculates NPSHa from absolute pressure and compares it with manufacturer NPSHr.
Pump affinity laws
Estimates the change in the same pump's parameters with speed.
Pump head from pressure
Converts pump pressure rise to head.
Pump pressure from head
Converts pump head to pressure rise.