Water velocities in pipes and tubes should not exceed certain limits.

The flow velocity of a fluid effectively describes everything about the motion of a fluid. Many physical properties of a fluid can be expressed mathematically in terms of the flow velocity.

Flow rate and velocity are related, but quite different, physical quantities. To make the distinction clear, think about the flow rate of a river. The greater the velocity of the water, the greater the …

Flow rate measures the volume of fluid passing a point in a given time (e.g., m³/s, L/min). Velocity measures the speed and direction of fluid movement (e.g., m/s, ft/s).

The fluid velocity in a pipe is a fundamental data to calculate to be able to characterize the flow in a pipe, thanks to the Reynolds number, and size a pipe circuit calculating the pressure drop …

Oct 1, 2025 · Enter the volumetric flow rate and the cross-sectional area into the calculator to determine the velocity.

This tool will calculate the flow velocity in any units from the specified volumetric flow rate of a substance flowing through a round duct or pipe of a chosen diameter.

Flow velocity refers to the speed at which a fluid (such as water or air) travels through a given area. It is commonly measured in meters per second (m/s).

Definition: This calculator determines the velocity of a fluid based on its flow rate and the cross-sectional area of the pipe or channel. Purpose: It helps engineers, hydrologists, and …

With this diameter, velocity and flow rate calculator, you can determine the exact flow rate or velocity at which water will flow through any given pipe. This calculator may also be used to …