Pipe Flow

Flow Calculator (Continuity)

Apply Q = A·V to a full circular pipe. Enter pipe diameter and either discharge or velocity, and the calculator gives the other.

Formula
Q = (π·D² / 4) · V

Used only when mode is Q.

Used only when mode is V.

Resultlive
Cross-sectional area, A
176.71cm²
Velocity, V
1.4147m/s
Discharge, Q
25L/s
Discharge (m³/hr)
90m³/hr
Discharge (m³/day)
2160m³/day
Reference: Continuity equation for steady, incompressible flow in a full pipe.