| acre-foot | |
|---|---|
 An acre-foot volume (not drawn to scale) | |
| General information | |
| Unit system | US Customary units |
| Unit of | Volume |
| Symbol | ac⋅ft |
| Conversions | |
| 1 ac⋅ft in ... | ... is equal to ... |
| SI units | ≈ 1,233.5 m3 |
| US customary units | 43,560 cu ft |
| US customary units | ≈ 325,850 US gal |
| Imperial units | ≈ 271,330 imp gal |
The acre-foot is a non-SI unit of volume equal to about 1,233 m3 commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water,[1] and river flows.
An acre-foot equals approximately an eight-lane swimming pool, 82 ft (25 m) long, 52 ft (16 m) wide and 9.8 ft (3 m) deep.
- ^ "NM OSE Glossary". Archived from the original on 14 November 2005. Retrieved 15 March 2014.