Irrigation Flow Calculator

Check Flow rates with the Irrigation Flow Calculator: 


This will calculate the absolute maximum flow rate or flow capacity for your irrigation job. The results you get from this calculator will help you determine the maximum size drip irrigation system that your water source can service.


Fill a bucket at your water source (outside faucet should work) with the water source fully open. Time how long it takes to fill the bucket to the top. Then, enter your figures into the calculator. The results will tell you how much water is flowing out of your source over a period of time.

Flow Calculator