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Engineering
Pipe Flow Velocity
v = Q / A from flow rate and diameter
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Parameters
Results
- Velocity v
- 0.42 m/s
- Re (ν=1e-6)
- 21,221
How it works
Calculate fluid velocity in a pipe from volumetric flow rate and diameter.
Who it's for: Plumbing and process engineers sizing pipe runs.
v = Q/A with A = πD²/4.
Q converted from L/min to m³/s internally.
Also estimates Reynolds number at ν = 10⁻⁶ m²/s.
How to use
- Enter Flow rate Q (L/min) and Diameter D (mm).
- Read Velocity v and Re.