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 foot.
Valid units must be of the volume type.
You can use this form to select from known units:
I'm feeling lucky, show me some random units
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.