Full name: acre foot
Plural form: acre feet
Alternate spelling: acre-foot
Category type: volume
Scale factor: 1233.48185532
The SI derived unit for volume is the cubic meter.
1 cubic meter is equal to 0.000810713182109 acre feet.
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An acre foot is a unit of volume commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, and river flows. It defined by the volume of water necessary to cover one acre of surface area to a depth of one foot. It is equal to exactly 43,560 cubic feet, or to 325,851 U.S. gallons, or exactly 1233.48184 cubic meters.