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acre-foot

Convert acre-feet to other major units of volume

A unit used to measure volumes of water, typically for use in irrigation. One acre-foot is the amount of water that would cover an acre of land to a depth of 1 foot, = 43,560 cubic feet, approximately 325,851 U.S. gallons (approximately 1233.48 cubic meters).

At current American rates of consumption, on average 1 acre-foot of water is enough to meet the industrial and municipal demands of 4 people for a year.

The acre-inch, the volume of water needed to cover an acre to a depth of 1 inch, 1/12th of an acre-foot, is approximately 27,154.25 gallons or approximately 102.79 cubic meters.