Pipe Flow Velocity Calculator

Calculate flow velocity, pipe sizing, and recommended velocity limits for liquid and gas piping systems.

Volume flow rate.
L/s
Internal diameter of the pipe.
mm
Water: 998, Steam: 2-10, Air: 1.2 kg/m³.
kg/m³

Results

Flow Velocity-m/s
Mass Flow Rate-kg/s
Reynolds Number (est)-
Recommended Assessment-
References: ASME B31.3; Crane TP-410