Pipe Flow Rate Calculator

Calculate volumetric flow rate (m³/h, L/s) based on pipe diameter and fluid velocity, or velocity based on flow rate and diameter.

Source / method note

Calculations are based on the basic hydrodynamic continuity equation (Q = A × v). It is assumed that the fluid (e.g., water) is incompressible.

Legal / official rate note

This tool is intended for educational purposes and practical engineering estimates. Professional design, industrial plumbing, and certified projects require evaluation by an expert engineer.

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