Convert US gallon to imperial gallon
1 gal = 0.8326741846 imp gal
1 gal = 0.83267 imp gal
1 gal in every volume unit
| cubic millimeter | 3,785,400 mm³ |
| microliter | 3,785,400 μL |
| milliliter | 3,785.4 mL |
| cubic centimeter | 3,785.4 cm³ |
| US teaspoon | 768 tsp |
| centiliter | 378.54 cL |
| US tablespoon | 256 tbsp |
| cubic inch | 231 in³ |
| imperial fluid ounce | 133.23 imp fl oz |
| US fluid ounce | 128 fl oz |
| deciliter | 37.854 dL |
| US cup | 16 cup |
| US pint | 8 pt |
| imperial pint | 6.6614 imp pt |
| US quart | 4 qt |
| liter | 3.7854 L |
| cubic decimeter | 3.7854 dm³ |
| imperial quart | 3.3307 imp qt |
| board foot | 1.6042 fbm |
| US gallon | 1 gal |
| imperial gallon | 0.83267 imp gal |
| cubic foot | 0.13368 ft³ |
| US bushel | 0.10742 bu |
| hectoliter | 0.037854 hL |
| US beer barrel | 0.032258 bbl beer |
| oil barrel | 0.02381 bbl |
| cubic yard | 0.0049511 yd³ |
| cubic meter | 0.0037854 m³ |
| kiloliter | 0.0037854 kL |
| hundred cubic feet | 0.0013368 CCF |
| cord | 0.0010444 cord |
| acre-foot | 0.0000030689 ac·ft |
| million US gallons | 0.000001 MG |
| cubic kilometer | 3.7854e-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 |