Darcy–Weisbach Calculator
Compute head loss h_f = f·(L/D)·v²/(2g) in a pipe.
Input Data
Friction Factor
Pipe Length
m
Diameter
m
Velocity
m/s
Results
h_f = f·(L/D)·v²/(2g).
4.0775m
At a glance:h_f = f·(L/D)·v²/(2g). Complements darcy-friction and head-loss.
Formula
h_f = f·(L/D)·v²/(2g).
$$h_f = f\,\dfrac{L}{D}\,\dfrac{v^2}{2g}$$How to Use
- Enter f, L, D and v.
- The tool returns head loss.
Case Studies
f=0.02, L=100, D=0.1, v=2
h_f ≈ 4.08 m.
FAQ
h_f vs pressure drop?
Δp = ρ·g·h_f.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.