To convert imperial gallons to acre-feet, multiply the value by 3.68558 × 10⁻⁶. To go the other way, multiply acre-feet by 271,328 to get imperial gallons.
| Imperial Gallons (gal-uk) | Acre-Feet (ac·ft) |
|---|---|
| 1 gal-uk | 3.68558 × 10⁻⁶ ac·ft |
| 2 gal-uk | 7.37115 × 10⁻⁶ ac·ft |
| 5 gal-uk | 1.84279 × 10⁻⁵ ac·ft |
| 10 gal-uk | 3.68558 × 10⁻⁵ ac·ft |
| 20 gal-uk | 7.37115 × 10⁻⁵ ac·ft |
| 50 gal-uk | 0.000184279 ac·ft |
| 100 gal-uk | 0.000368558 ac·ft |
| 500 gal-uk | 0.00184279 ac·ft |
| 1,000 gal-uk | 0.00368558 ac·ft |
25 gal-uk × 3.68558 × 10⁻⁶ = 9.21394 × 10⁻⁵ ac·ft
Try this example →250 gal-uk × 3.68558 × 10⁻⁶ = 0.000921394 ac·ft
Try this example →Imperial gallon (gal-uk). The imperial gallon is exactly 4.54609 liters, used in the UK and in some Commonwealth countries.
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.
There are 3.68558 × 10⁻⁶ acre-feet in one imperial gallon.
Multiply the number of imperial gallons by 3.68558 × 10⁻⁶. For example, 10 imperial gallons equal 3.68558 × 10⁻⁵ acre-feet.
One acre-foot equals 271,328 imperial gallons.