Using the calculator
Enter the values requested above. Convert irrigation depth over an area into gallons of water.
FREE CALCULATOR · NO SIGN IN REQUIRED
Irrigation Water Calculator
Convert irrigation depth over an area into gallons of water.
Enter your garden or yard measurements
Measure the actual area, depth, spacing, quantity, or product coverage that applies to the project. The irrigation water tool converts those inputs into practical planning quantities.
Important: Use the inputs that match your situation. Results are estimates based on the values and assumptions entered.
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How to use this calculator
Reading the result
The result converts the field, garden, spacing, rate, or coverage inputs into the quantity or timing needed for the scenario entered.
Results are estimates based on the values entered. Review the Methodology and Calculator Disclaimer for important limitations.