Cups (US) to Gallons (UK) converter
Convert cups (us) (cup) to gallons (uk) (gal (UK)) — results update instantly as you type.
Cups (US) to Gallons (UK)
1 cup = 0.05204214 gal (UK)
How to convert Cups (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
cup × 0.0520421365 = gal (UK)
Multiply your cups (us) value by 0.0520421365 to get gallons (uk). For the reverse, divide by the same factor.
Cups (US) to Gallons (UK) conversion table
| Cups (US) | Gallons (UK) |
|---|---|
| 1 cup | 0.052042 gal (UK) |
| 2 cup | 0.104084 gal (UK) |
| 5 cup | 0.260211 gal (UK) |
| 10 cup | 0.520421 gal (UK) |
| 25 cup | 1.301053 gal (UK) |
| 100 cup | 5.204214 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.