To convert imperial gallons to liters, use liters = imperial gallons × 4.54609. For example, 5 imp gal = 22.7305 L.
How to convert UK Gallons to Liters
- Type the value in imperial gallons.
- The answer in liters appears instantly, with the formula.
- Use ⇄ to swap the direction, or pick other units.
UK Gallons to Liters formula
liters = imperial gallons × 4.54609
Example: 5 imp gal = 22.7305 L.
Reverse: 1 L = 0.21996925 imp gal.
UK Gallons to Liters conversion table
| Imperial gallon (imp gal) | Liter (L) |
|---|---|
| 1 | 4.54609 |
| 2 | 9.09218 |
| 3 | 13.6383 |
| 4 | 18.1844 |
| 5 | 22.7305 |
| 6 | 27.2765 |
| 7 | 31.8226 |
| 8 | 36.3687 |
| 9 | 40.9148 |
| 10 | 45.4609 |
| 11 | 50.007 |
| 12 | 54.5531 |
| 15 | 68.1913 |
| 20 | 90.9218 |
| 25 | 113.652 |
| 30 | 136.383 |
| 40 | 181.844 |
| 50 | 227.305 |
| 60 | 272.765 |
| 70 | 318.226 |
| 75 | 340.957 |
| 80 | 363.687 |
| 90 | 409.148 |
| 100 | 454.609 |
| 150 | 681.914 |
| 200 | 909.218 |
| 250 | 1,136.52 |
| 500 | 2,273.05 |
| 1,000 | 4,546.09 |
About these units
Imperial gallon (imp gal): Exactly 4.54609 L. Used in the UK for fuel economy and some liquids.
Liter (L): One cubic decimetre. Used for drinks, fuel and engine size.
Frequently asked questions
How many liters are in a imperial gallon?
There are 4.54609 liters in one imperial gallon.
How do I convert imperial gallons to liters?
liters = imperial gallons × 4.54609. Example: 5 imp gal = 22.7305 L.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested