Gallons (US) to Gallons (UK) converter
Convert gallons (us) (gal) to gallons (uk) (gal (UK)) — results update instantly as you type.
Gallons (US) to Gallons (UK)
1 gal = 0.83267418 gal (UK)
How to convert Gallons (US) to Gallons (UK)
Volume conversions appear constantly in cooking, fuel, and science. The metric system uses milliliters and liters, while the US uses cups, pints, quarts, and gallons — and the UK gallon is a different size entirely.
All units convert through the liter. One US gallon is exactly 3.785411784 liters, while a UK (imperial) gallon is 4.54609 liters — about 20% larger. One cubic meter equals exactly 1,000 liters.
Formula
gal × 0.8326741846 = gal (UK)
Multiply your gallons (us) value by 0.8326741846 to get gallons (uk). For the reverse, divide by the same factor.
Gallons (US) to Gallons (UK) conversion table
| Gallons (US) | Gallons (UK) |
|---|---|
| 1 gal | 0.832674 gal (UK) |
| 2 gal | 1.665348 gal (UK) |
| 5 gal | 4.163371 gal (UK) |
| 10 gal | 8.326742 gal (UK) |
| 25 gal | 20.816855 gal (UK) |
| 100 gal | 83.267418 gal (UK) |
Common use cases
- Recipes between cups, milliliters, and fluid ounces
- Fuel and liquid purchases between gallons and liters
- Water tanks and pools in cubic meters
- Beverage servings in pints vs half-liters
Frequently asked questions
One US gallon equals exactly 3.785411784 liters. A UK imperial gallon is larger at 4.54609 liters.