Pipe Pressure Drop Worksheet
A pipe pressure drop worksheet should capture the same inputs the calculator needs: actual pipe ID, flow, fluid properties, length, fitting loss and the allowable pressure or head loss.
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Worksheet equation
The calculator uses velocity, Reynolds number and a Darcy friction factor before adding straight-pipe and fitting losses.
dp = (f * L / D + sumK) * rho * v^2 / 2
Rows to capture
- Flow and ID: set velocity and Reynolds number.
- Length and fittings: set straight-pipe and minor-loss terms.
- Density and viscosity: must match the fluid and temperature.
Best workflow
Use this page to frame the inputs, then run the live calculator for velocity, head loss, pressure drop and hydraulic power loss.
Related pages
- Pipe pressure drop calculator - Darcy-Weisbach loss, head and velocity from flow and pipe ID.
- Pipe size by flow velocity - pick a first-pass pipe ID from flow and target velocity.
- Pump flow and HP calculator - pump displacement, pressure, flow, kW and horsepower.
- Pump NPSH calculator - available suction head and NPSH margin.
- Pump NPSH available calculator - carry suction-line loss into the NPSH check.