💧 Volume
UK gallons to liters Converter
Convert UK gallons to liters instantly. Includes a reference table and formula.
Quick answer: To convert UK gallons to liters, multiply by 4.54609. For example, 1 UK gallons = 4.54609 liters. Use the calculator below for any value.
UK gallons to liters
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Common conversions
| UK gallons | liters |
|---|
Formula:
How to convert UK gallons to liters
1
Enter your value
Type the number of uk gallons you want to convert into the left box. The result in liters appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — liters to UK gallons. Your current value carries across so you don't have to re-enter anything.
3
About UK gallons and liters
UK gallons and liters are both volume measurements. Use this converter to switch between them instantly.
💡 Did you know?
1 UK gallon = 4.546 litres. 1 US gallon = 3.785 litres. Old UK MPG figures are about 20% better than the same number in US MPG — purely because the UK gallon is bigger, not because British cars were more efficient.
📊 Common conversions at a glance
| UK gallons | liters |
|---|---|
| 0.5 | 2.273 |
| 1 | 4.546 |
| 2 | 9.092 |
| 5 | 22.73 |
| 10 | 45.46 |
| 15 | 68.19 |
Reviewed for 2026. UK gallons ↔ liters conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.