Cubic Feet To Acre Foot

Non-SI unit of volume

acre-pes
An acre-foot book (not drawn to scale)
General information
Unit organization	US Customary units
Unit of	Volume
Symbol	ac⋅ft
Conversions
1 ac⋅ft in ...	... is equal to ...

SI units	≈ 1,233.5 chiliadⁱⁱⁱ
Us customary units	43,560 cu ft
Usa customary units	≈ 325,850 US gal
Purple units	≈ 271,330 imp gal

The acre-pes is a not-SI unit of measurement of volume equal to well-nigh 1,233 grand³ commonly used in the United states of america in reference to big-scale water resource, such as reservoirs, aqueducts, canals, sewer period capacity, irrigation water,^[1] and river flows.

An acre-foot equals approximately an 8-lane swimming puddle, 82 ft (25 m) long, 52 ft (16 yard) wide and ix.viii ft (3 thou) deep.

Definitions [edit]

Every bit the name suggests, an acre-foot is defined as the volume of i acre of expanse to a depth of one foot.

Since an acre is defined as a chain by a furlong (i.due east. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 grand³).

There are 2 definitions of an acre-pes (differing by almost 0.0006%), depending on whether the "foot" used is an "international pes" or a "U.S. survey foot".

1 acre-foot	= 43,560 cubic anxiety = 75,271,680 cu in
ane international acre-foot	= 43,560 international cubic feet
	= 1,233.48183754752 mⁱⁱⁱ
	≈ 271,328.072596 imp gal
	= 325,851+ 3⁄7 Usa gal
1 U.S. survey acre-human foot	= 43,560 U.S. survey cubic feet
	≈ 1233.4892384681 thousand³
	≈ 271,329.700571 imp gal
	≈ 325,853.383688 U.S. gal^[a]

Awarding [edit]

Equally a rule of thumb in Us water management, ane acre-foot is taken to be the planned annual h2o usage of a suburban family household.^[b] In some areas of the desert Southwest, where water conservation is followed and ofttimes enforced, a typical family uses simply almost 0.25 acre-foot of water per year.^[3] One acre-pes/year is approximately 119 cu ft/d (3.38 chiliad^three/d).

The acre-pes per year has been used historically in the Us in many water-management agreements, for example the Colorado River Compact, which divides 15×10 ^ ⁶ acre⋅ft/a (590 thou³/s) among vii western US states.

H2o reservoir capacities in the Us are commonly given in thousands of acre-anxiety, abbreviated TAF or KAF.

In about other countries except the US, the metric system is in common use and h2o volumes are commonly expressed in liter, cubic meter or cubic kilometer. Ane acre-pes is approximately equivalent to 1.233 megaliters. Big bodies of water may exist measured in cubic kilometers (ane,000,000,000 m^three, or 1000 gigaliter), with 1 million acre-anxiety approximately equalling 1.233 km³.

See likewise [edit]

Cubic meter per second
Cubic foot per second
List of unusual units of measurement
United States customary units
Unit of measurement

Explanatory notes [edit]

^ This conversion assumes the international foot is used to define the U.S. gallon and the U.S. survey pes to define the acre human foot. If the same foot is used for both, the result is the 325,851+ 3⁄seven U.Due south. gal figure as obtained previously.
^ The state of Montana assumes i.0 acre-foot per year for a family of 5.^[two]

Citations [edit]

^ "NM OSE Glossary". Archived from the original on xiv Nov 2005. Retrieved 15 March 2014.
^ Water Rights Bureau; state of Montana (13 April 2004). "Grade No. 627 R8/03 Notice of Water Right" (PDF). Archived from the original (PDF) on 25 Jan 2008. Retrieved thirty January 2008.
^ Santa Iron, New Mexico charge per unit averages 0.25 acre-foot per twelvemonth per household. See Planning Division, Planning & Country Employ Department, City of Santa Fe, New Mexico (February 2001). "Water Use in Santa Iron: A survey of residential and commercial h2o apply in the Santa Fe urban area". Archived from the original (PDF) on 22 July 2012. Retrieved 30 January 2008.