Convert water depth in inches to gallons per acre.
An acre covered one inch deep holds about 27,154 gallons, so multiplying depth by that constant converts inches to volume. Fields are measured in inches of water but water is billed and moved in gallons, so the conversion bridges irrigation planning and metering.
Gallons per Acre
Gallons per acre = inches x 27154 (one acre-inch of water)
Gallons per acre = inches x 27154 (one acre-inch of water) An acre covered one inch deep holds about 27,154 gallons, so multiplying depth by that constant converts inches to volume.
Fields are measured in inches of water but water is billed and moved in gallons, so the conversion bridges irrigation planning and metering.
This calculator takes 1 input: Water depth. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.