# Darcy Weisbach Pressure Loss Equation & Calculator

## Pressure Loss due to Pipe Friction Calculation

fD - Dercy friction factor
L - Pipe length (m)
D - Hydraulic diameter (m)
V - Fluid flow avg velocity (m/s)
p - Fluid density (kg/m3)

Darcy Weisbach pressure loss calculator - equation & step by step calculation to find the fluid pressure loss due to friction along a given length of pipe to the average velocity of fluid flow for an incompressible fluid. hf = [fD x (L/D) x (ρ x V2/2)]. The Darcy friction factor fD, pipe length L in meter, pipe diameter D in meter, fluid flow average velocity V in meter/sec & fluid density kg/m3 are the key terms of this calculation.

## Formula

In mechanical engineering, the below mathematical formula is used to calculate the fluid pressure loss due to friction between pipe and fluid.

In the field of mechanical engineering, sometime, it's important to analyse the pressure loss due to the friction between pipe & fluid along the length. The above formula & step by step calculation may useful for users to understand how the values are being used in the formula to find the pressure loss, however, when it comes to online for quick calculations, this Darcy Weisbach pressure loss calculator helps the user to perform & verify such calculations as quick as possible.

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