Acre-foot conversions

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The acre-foot conversion selector on this page selects the volume measurement unit to convert to starting from acre-feet (ac ft). To make a conversion starting from a unit of volume other than acre-foot, simply click on the "Reset" button.

What is acre-foot?

The international acre-foot is a unit of volume equal to 1,233.48184 cubic meters (1 ac ft = 1,233.48184 m³), the derived unit of volume in the International System of Units (SI). It is also equal to 1.23348184x109 cubic centimeters (cm³), or 1.23348184 cubic decameters (dam³) or 1.23348184x10-6 cubic kilometers (km³) (units of volume in the SI), or 1,233,481.84 liters (L), or 123,348.184 decaliters (daL), or 12,334.8184 hectoliters (hL) or 1,233.48184 kiloliters (kL), which are units of volume in the metric system.

The acre-foot definition varies depending on the system of units used, as follows:

  • The international acre-foot, equal to 43,560 international cubic feet (cu ft) or 1,233.48184 cubic meters (m³)
  • The US survey acre-foot, equal to 43,560 US survey cubic feet (cu ft) or about 1,233.48924 cubic meters (m³)

A volume of 1.0 acre-foot is equivalent to the volume of a rectangular prism that has a surface area (length × width) of 1.0 acre and a depth of 1.0 foot. The acre (ac) is a unit of area in the US customary / Imperial systems of units. The foot (ft) is a unit of length in the US customary / Imperial systems of units.

The acre-foot formula:

    1 acre-foot = 1 acre (ac) × 1 foot (ft)

The acre-foot is used as a unit of volume for large-scale water resources.

Symbol:

ac ft

Plural:

acre-feet

Also known as:

acre foot (plural: acre feet)

Acre-foot conversions: links

A compehensive list with conversions from acre-feet to other (metric, imperial, or customary) volume measurement units is presented below.