To convert acre-feet to imperial gallons, multiply the value by 271,328. To go the other way, multiply imperial gallons by 3.68558 × 10⁻⁶ to get acre-feet.
| Acre-Feet (ac·ft) | Imperial Gallons (gal-uk) |
|---|---|
| 1 ac·ft | 271,328 gal-uk |
| 2 ac·ft | 542,656 gal-uk |
| 5 ac·ft | 1,356,640 gal-uk |
| 10 ac·ft | 2,713,280 gal-uk |
| 20 ac·ft | 5,426,560 gal-uk |
| 50 ac·ft | 13,566,400 gal-uk |
| 100 ac·ft | 27,132,800 gal-uk |
| 500 ac·ft | 135,664,000 gal-uk |
| 1,000 ac·ft | 271,328,000 gal-uk |
250 ac·ft × 271,328 = 67,832,000 gal-uk
Try this example →Acre-foot (ac·ft). An acre-foot is the volume of water covering an acre to a depth of one foot (1,233.5 m³), the US water-resources unit.
Imperial gallon (gal-uk). The imperial gallon is exactly 4.54609 liters, used in the UK and in some Commonwealth countries.
There are 271,328 imperial gallons in one acre-foot.
Multiply the number of acre-feet by 271,328. For example, 10 acre-feet equal 2,713,280 imperial gallons.
One imperial gallon equals 3.68558 × 10⁻⁶ acre-feet.