basic

Pump Hydraulic Power and Efficiency Calculator

P_hyd = ρgQH; P_shaft = P_hyd / η.

Calculates hydraulic power (useful power delivered to fluid) and shaft power input from fluid density, flow rate, pump head, and pump efficiency.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

P_hydraulic = ρ × g × Q × H (W); P_shaft = P_hyd / η; η = P_hyd/P_shaft

In depth

Calculates hydraulic power (useful power delivered to fluid) and shaft power input from fluid density, flow rate, pump head, and pump efficiency.