UK Gallons to Liters Converter
Converts imperial gallons from British sources, such as fuel tanks and tank capacities, into liters.
1 UK gal = 4.5461 L
liters
1 UK gal = 4.5461 L
How to convert imperial gallons to liters
Multiply the number of imperial gallons by 4.54609.
Formula
L = UK gal × 4.54609
Examples
- 1 UK gal × 4.54609 = 4.5461 L
- 12 UK gal × 4.54609 = 54.5531 L
- 50 UK gal × 4.54609 = 227.3045 L
Imperial gallons to liters conversion table
| Imperial gallons (UK gal) | Liters (L) |
|---|---|
| 0.5 | 2.273 |
| 1 | 4.5461 |
| 2 | 9.0922 |
| 3 | 13.6383 |
| 5 | 22.7305 |
| 10 | 45.4609 |
| 12 | 54.5531 |
| 15 | 68.1914 |
| 20 | 90.9218 |
| 25 | 113.6523 |
| 40 | 181.8436 |
| 50 | 227.3045 |
| 100 | 454.609 |
| 500 | 2,273.045 |
Values rounded to 4 decimal places or 4 significant digits.
About imperial gallons
The imperial gallon is defined as exactly 4.54609 liters, about 20% larger than the US gallon. UK fuel economy figures in miles per gallon use the imperial gallon.
About liters
A liter is the volume of a cube 10 cm on each side (one cubic decimeter). It is not an SI unit, but it is accepted for use with SI and is the everyday unit for drinks and fuel almost everywhere.
Frequently asked questions
How many liters are in one imperial gallon?
One imperial gallon equals 4.5461 liters (rounded).
How do I convert imperial gallons to liters?
Multiply the number of imperial gallons by 4.54609. For example: 12 UK gal × 4.54609 = 54.5531 L.
How many imperial gallons are in one liter?
One liter equals 0.22 imperial gallons.
Is the UK gal to L conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.