Pipe Flow Hydraulic Power Calculator
Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer
Last updated: July 26, 2026Pipe Flow Hydraulic Power Calculator
Moving fluid against pressure always takes power - this calculator finds the ideal hydraulic power a pump or fan must impart to the fluid itself, before any losses in the pump or fan.
Formula: P = Q × ΔP
Example: 0.05 m³/s of flow against a 300 kPa pressure rise requires 15 kW of hydraulic power.
How to Use This Calculator
- Enter the flow rate.
- Enter the pressure rise the pump or fan must produce.
This is the fluid-side power only - divide this figure by the pump or fan's mechanical efficiency to estimate the actual shaft power a motor must supply, since real equipment always loses some power to internal friction and other inefficiencies.