# acre foot

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**ac ft**or**af**)a unit of volume used to measure the capacity of reservoirs. One acre foot is a volume one foot deep covering an area of one acre. Thus an acre foot contains exactly 43 560 cubic feet, about 325 851.4 U.S. gallons, or about 1233.482 cubic meters (0.123 348 hectare meter). The symbol**af**is widely used in reservoir management in the U.S., often in combinations such as**kaf**(1000 acre feet) or**maf**(million acre feet; this symbol should be**Maf**).

*Dictionary of units of measurement.
2015.*

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**acre-foot**— ☆ acre foot [ā′kər foot΄ ] n. the quantity of irrigation water (43,560 cubic feet) that would cover one acre to a depth of one foot … English World dictionary**Acre foot**— Einheit Norm Angloamerikanisches Maßsystem Einheitenname acre foot Einheitenzeichen acre − foot Dimensionsname Volumen Dimensionssymbol … Deutsch Wikipedia**Acre-foot**— Einheit Norm Angloamerikanisches Maßsystem Einheitenname acre foot Einheitenzeichen acre − foot Dimensionsname Volumen Dimensionssymbol … Deutsch Wikipedia**Acre-foot**— 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, sewer flow capacity, and river flows.DefinitionIt is defined by the volume of one acre of… … Wikipedia**acre-foot**— noun (plural acre feet) a unit of volume equal to the volume of a sheet of water one acre (0.405 hectare) in area and one foot (30.48 cm) in depth; 43,560 cubic feet (1233.5 cubic metres) … English new terms dictionary**acre-foot**— /ay keuhr foot /, n. a unit of volume of water in irrigation: the amount covering one acre to a depth of one foot, equal to 43,560 cubic feet. [1900 05, Amer.] * * * … Universalium**acre-foot**— a′cre foot′ n. wam a unit of volume of water in irrigation: the amount covering one acre to a depth of one foot, equal to 43,560 cubic feet (1233 cubic meters) • Etymology: 1900–05, amer … From formal English to slang**acre-foot**— /ˌeɪkə ˈfʊt/ (say .aykuh foot) noun a unit of volume of water in irrigation in the imperial system, being the amount covering one acre to a depth of one foot equal to 43 560 cubic feet or 1233.48183754752 m3. Symbol: ac.ft … Australian English dictionary**acre-foot**— noun Date: 1900 the volume (as of irrigation water) that would cover one acre to a depth of one foot … New Collegiate Dictionary**acre-foot**— one acre of surface covered with 1 foot of water (1,233,500 L, 1233.5 m3, 325,851 gal.). Used to measure volumes of water used or stored, such as in reservoirs. Abbreviated as ac ft or af in the U.S.A … Dictionary of ichthyology