Water Pressure and Flow Calculator

Calculate water pressure loss and flow rates in piping systems using Hazen-Williams equation

Hazen-Williams EquationIPC 2021 Chapter 6

Street Pressure (PSI)

Elevation Change (ft)

Positive = uphill, Negative = downhill

Pipe Material

Pipe Diameter (in)

Total Pipe Length (ft)

Desired Flow Rate (GPM) - Optional

Fitting Type

Count

Enter values and click Calculate to see results.

Enter values and click Calculate

Frequently Asked Questions