Convert US gallon to imperial gallon
1 gal = 0.8326741846 imp gal
sig figs
1 gal = 0.833 imp gal
1 gal in every volume unit
| cubic millimeter | 3,790,000 mm³ |
| microliter | 3,790,000 μL |
| milliliter | 3,790 mL |
| cubic centimeter | 3,790 cm³ |
| US teaspoon | 768 tsp |
| centiliter | 379 cL |
| US tablespoon | 256 tbsp |
| cubic inch | 231 in³ |
| imperial fluid ounce | 133 imp fl oz |
| US fluid ounce | 128 fl oz |
| deciliter | 37.9 dL |
| US cup | 16 cup |
| US pint | 8 pt |
| imperial pint | 6.66 imp pt |
| US quart | 4 qt |
| liter | 3.79 L |
| cubic decimeter | 3.79 dm³ |
| imperial quart | 3.33 imp qt |
| board foot | 1.6 fbm |
| US gallon | 1 gal |
| imperial gallon | 0.833 imp gal |
| cubic foot | 0.134 ft³ |
| US bushel | 0.107 bu |
| hectoliter | 0.0379 hL |
| US beer barrel | 0.0323 bbl beer |
| oil barrel | 0.0238 bbl |
| cubic yard | 0.00495 yd³ |
| cubic meter | 0.00379 m³ |
| kiloliter | 0.00379 kL |
| hundred cubic feet | 0.00134 CCF |
| cord | 0.00104 cord |
| acre-foot | 0.00000307 ac·ft |
| million US gallons | 0.000001 MG |
| cubic kilometer | 3.79e-12 km³ |
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 |