Pump Math Tool

Friction Loss Quick Calculator

Fast friction loss and pump pressure math for common hose sizes, custom C values, nozzle pressure, appliance loss, and elevation.

Inputs

Hose length (ft)

Flow (GPM)

Hose / C value

Custom C value

Nozzle pressure (PSI)

Appliance loss (PSI)

Elevation change PSI (+/-)

Training/reference aid only. Follow department SOPs, instructor direction, manufacturer data, and local conditions.

Friction loss

—

Pump pressure

—

FL per 100 ft

—

Total flow

—

Enter values and calculate.