Gallons (UK) to Cups (US) converter
Convert gallons (uk) (gal (UK)) to cups (us) (cup) — results update instantly as you type.
Gallons (UK) to Cups (US)
1 gal (UK) = 19.21519881 cup
How to convert Gallons (UK) to Cups (US)
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 (UK) × 19.2151988081 = cup
Multiply your gallons (uk) value by 19.2151988081 to get cups (us). For the reverse, divide by the same factor.
Gallons (UK) to Cups (US) conversion table
| Gallons (UK) | Cups (US) |
|---|---|
| 1 gal (UK) | 19.215199 cup |
| 2 gal (UK) | 38.430398 cup |
| 5 gal (UK) | 96.075994 cup |
| 10 gal (UK) | 192.151988 cup |
| 25 gal (UK) | 480.37997 cup |
| 100 gal (UK) | 1,921.519881 cup |
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.