Flow Rate Calculator

Flow Rate Calculator helps to calculate the flow rates of water and other fluids passing through a cross-sectional area. It uses the velocity of the fluid and the area of the place it passes through.

This pipe flow calculator can calculate:

• Flow Rate
• Flow Velocity 
• Flow Area

What is Flow Rate?

Flow rate is defined as 

“The volume of fluid each second that is passing through a cross-sectional slice of the pipe.”

Flow Rate formula

The flow rate formula is

Q = vA

Where,

A = cross-sectional area of the pipe,

v = velocity

Finding the flow rate of fluid

Let’s find out how to calculate flow rate manually.

Example:

Find the flow rate of a fluid through an area of 0.7 m² flowing with a velocity of 3 m/s.

Solution:

Step 1: Write down the values.

A = 0.7 m²

V = 3 m/s

Step 2: Place the values in the flow rate formula

 Q = Av

= 0.7 × 3

Q = 2.1 m³/s