Water Application Depth Calculator
Convert total gallons applied into inches of water per acre for irrigation planning.
Inputs
How It Works
1 acre-inch = 27,154 gallons
Inches Applied = Gallons ÷ (Acres × 27,154)
This converts water volume into irrigation depth.
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FAQ
What is an acre-inch?
An acre-inch is the volume of water needed to cover one acre of land with one inch of water, equal to 27,154 gallons.
Why convert gallons to inches?
Irrigation scheduling is typically measured in inches of water rather than gallons.
How much water does one inch represent?
One inch of water across one acre equals approximately 27,154 gallons.
Understanding Irrigation Water Application Depth
Water application depth is a key measurement in irrigation management. While pumping systems measure water in gallons, crop water requirements are typically expressed in inches. Converting gallons into inches per acre ensures irrigation applications match crop evapotranspiration demand and soil water holding capacity.
One acre-inch equals approximately 27,154 gallons. By dividing total gallons applied by acres irrigated and the acre-inch conversion factor, producers can determine how many inches of water were delivered. This calculation helps prevent over-irrigation and reduces runoff or deep percolation losses.
Using a water application depth calculator improves irrigation efficiency, conserves water resources, and supports better crop performance. Accurate water depth calculations are essential for modern irrigation scheduling and sustainable farm water management practices.