Enter the coverage area (ft^2) and the flow density into the Calculator. The calculator will evaluate the Sprinkler Flow Rate. 

Sprinkler Flow Rate Formula

SFR = CA * FD

Variables:

  • SFR is the Sprinkler Flow Rate ()
  • CA is the coverage area (ft^2)
  • FD is the flow density

To calculate the Sprinkler Flow Rate, multiply the coverage area by the flow density.

How to Calculate Sprinkler Flow Rate?

The following steps outline how to calculate the Sprinkler Flow Rate.


  1. First, determine the coverage area (ft^2). 
  2. Next, determine the flow density. 
  3. Next, gather the formula from above = SFR = CA * FD.
  4. Finally, calculate the Sprinkler Flow Rate.
  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.

coverage area (ft^2) = 580

flow density = 90

FAQ

What is flow density in the context of sprinkler systems?

Flow density refers to the amount of water distributed per unit area, typically measured in gallons per minute per square foot. It’s a crucial factor in determining the efficiency and effectiveness of a sprinkler system.

How do I measure the coverage area for my sprinkler system?

The coverage area can be measured by outlining the space that your sprinkler system can reach and water effectively. This is usually measured in square feet and can be determined by physically measuring the dimensions of the area or using a map or layout of your property.

Why is it important to calculate the Sprinkler Flow Rate accurately?

Accurately calculating the Sprinkler Flow Rate ensures that your lawn or garden receives adequate water without waste. It helps in maintaining optimal soil moisture, promoting healthy plant growth, and conserving water.

Can I use the Sprinkler Flow Rate formula for any type of sprinkler system?

Yes, the Sprinkler Flow Rate formula (SFR = CA * FD) is a basic calculation that can be applied to most types of sprinkler systems, whether for residential lawns, commercial landscapes, or agricultural irrigation. However, specific systems may require additional considerations for optimal performance.