This calculator allows you to convert from Acre-foot to Acre-foot (US survey) and in a reverse direction. To convert from Acre-foot to Acre-foot (US survey), enter the amount of Acre-foot into the first input and to convert from Acre-foot (US survey) to Acre-foot, enter the amount of Acre-foot (US survey) into the second input.
20 Acre-foot = 19.99988000024 Acre-foot (US survey)
Acre-foot to Cubic meter | Acre-foot to Liter | Acre-foot to Cubic centimeter | Acre-foot to Cubic foot | Acre-foot to Gallon (US) | Acre-foot to Cubic inch | Acre-foot to Milliliter | Acre-foot to Cubic yard | Acre-foot to Microliter |20 Acre-foot equal 19.99988000024 Acre-foot (US survey).
Every 1 Acre-foot = 0.99999400001201 Acre-foot (US survey) and so, 20 Acre-foot = 20 multiplied by 0.99999400001201 = 19.99988000024 Acre-foot (US survey).
What is an acre foot?
Acre foot was mainly used to measure large scales of water. It is a common unit to define volumes of canals and rivers.
United States define an acre foot as the volume of water which can cover an area of one acre to a depth of one foot.
Let's show some examples to make you imagine how much is one acre foot:
One acre foot of water is sufficient for the needs of a suburban family household per year. Under the enforcement of water conservation, the same family can consume only 0.25 acre-foot of water annually.
| 10 Acre-foot = 9.9999400001201 Acre-foot (US survey) |
| 11 Acre-foot = 10.999934000132 Acre-foot (US survey) |
| 12 Acre-foot = 11.999928000144 Acre-foot (US survey) |
| 13 Acre-foot = 12.999922000156 Acre-foot (US survey) |
| 14 Acre-foot = 13.999916000168 Acre-foot (US survey) |
| 15 Acre-foot = 14.99991000018 Acre-foot (US survey) |
| 16 Acre-foot = 15.999904000192 Acre-foot (US survey) |
| 17 Acre-foot = 16.999898000204 Acre-foot (US survey) |
| 18 Acre-foot = 17.999892000216 Acre-foot (US survey) |
| 19 Acre-foot = 18.999886000228 Acre-foot (US survey) |
| 20 Acre-foot = 19.99988000024 Acre-foot (US survey) |
| 21 Acre-foot = 20.999874000252 Acre-foot (US survey) |
| 22 Acre-foot = 21.999868000264 Acre-foot (US survey) |
| 23 Acre-foot = 22.999862000276 Acre-foot (US survey) |
| 24 Acre-foot = 23.999856000288 Acre-foot (US survey) |
| 25 Acre-foot = 24.9998500003 Acre-foot (US survey) |
| 26 Acre-foot = 25.999844000312 Acre-foot (US survey) |
| 27 Acre-foot = 26.999838000324 Acre-foot (US survey) |
| 28 Acre-foot = 27.999832000336 Acre-foot (US survey) |
| 29 Acre-foot = 28.999826000348 Acre-foot (US survey) |
| 30 Acre-foot = 29.99982000036 Acre-foot (US survey) |
