Enter the cross-sectional area and the flow velocity into the calculator to determine the flow rate. This calculator helps in evaluating the flow rate of a fluid through a channel or pipe.

Garrett Flow Formula

The following formula is used to calculate the Garrett flow rate.

Q = A * V

Variables:

  • Q is the flow rate (cubic feet per second)
  • A is the cross-sectional area through which the fluid flows (square feet)
  • V is the flow velocity (feet per second)

To calculate the flow rate, multiply the cross-sectional area by the flow velocity.

What is Garrett Flow?

Garrett flow refers to the volumetric flow rate of a fluid through a channel or pipe. It is a measure of how much fluid passes through a given cross-sectional area in a given amount of time. This calculation is essential in various engineering and environmental applications, such as water supply systems, sewage systems, and irrigation channels.

How to Calculate Garrett Flow?

The following steps outline how to calculate the Garrett Flow.


  1. First, determine the cross-sectional area (A) through which the fluid flows in square feet.
  2. Next, determine the flow velocity (V) in feet per second.
  3. Use the formula from above = Q = A * V.
  4. Finally, calculate the flow rate (Q) in cubic feet per second.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem :

Use the following variables as an example problem to test your knowledge.

cross-sectional area (A) = 2 square feet

flow velocity (V) = 3 feet per second