Tools

Friction Loss Calculator

Compute velocities, head loss, frictional and electrical power, and the annual cost of frictional loss from your gauge readings and pipe sizes. Results update as you type.

Inputs

Motor Efficiency(%)

Pump Efficiency(%)

Energy Cost($/kWh)

Percentage of Time in Operation(%)

Flow Rate(GPM)

Inlet Pressure(psi)

Outlet Pressure(psi)

Inlet Pressure Gauge Elevation(feet)

Outlet Pressure Gauge Elevation(feet)

Pipe ID at Inlet Pressure Gauge(inches)

Pipe ID at Outlet Pressure Gauge(inches)

Fluid Specific Gravity

Results

Velocity at Inlet Gauge(ft/s)

10.21

Velocity at Outlet Gauge(ft/s)

10.21

Head Loss(feet)

46.20

Frictional Power(HP)

4.67

Electrical Power to Overcome Friction(kW)

8.06

Annual Cost of Frictional Loss

$3176.72

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