Convert US gallon to imperial gallon
1 gal = 0.8326741846 imp gal
1 gal = 0.833 imp gal
1 gal in every volume unit
| milliliter | 3,790 mL |
| centiliter | 379 cL |
| liter | 3.79 L |
| cubic meter | 0.00379 m³ |
| cubic inch | 231 in³ |
| cubic foot | 0.134 ft³ |
| US fluid ounce | 128 fl oz |
| US pint | 8 pt |
| US quart | 4 qt |
| US gallon | 1 gal |
| imperial gallon | 0.833 imp gal |
| cubic yard | 0.00495 yd³ |
| acre-foot | 0.00000307 ac·ft |
How the conversion works
Multiply by 0.8326741846 to go from US gallon to imperial gallon, or divide by it to go back. Every conversion on this site routes through the SI value (m³) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? imperial gallon to US gallon — 1 imp gal = 1.200949926 gal.
US gallon to imperial gallon — common values
| 1 gal | 0.83267418 imp gal |
| 2 gal | 1.6653484 imp gal |
| 3 gal | 2.4980226 imp gal |
| 5 gal | 4.1633709 imp gal |
| 10 gal | 8.3267418 imp gal |
| 15 gal | 12.490113 imp gal |
| 20 gal | 16.653484 imp gal |
| 25 gal | 20.816855 imp gal |
| 50 gal | 41.633709 imp gal |
| 75 gal | 62.450564 imp gal |
| 100 gal | 83.267418 imp gal |
| 250 gal | 208.16855 imp gal |
| 500 gal | 416.33709 imp gal |
| 1000 gal | 832.67418 imp gal |
Solvers that use volume