UK Gallons to Litres Converter
1 UK gallon = 4.54609 litres.
Enter a value
Result
1 UK gallon =
4.54609 L
1 gal (UK) × 4.54609 = 4.54609 L
1 US gallon = 3.785411784 L · 1 UK gallon = 4.54609 L
The working
- 1. Convert 1 gal (UK) to litres: 1 × 4.54609 = 4.54609.
- 2. Convert to L: 4.54609 ÷ 1 = 4.54609.
1 gal (UK) in every unit
US and UK measures differ
- US cup
- 236.6 mL
- UK pint
- 568 mL
- US pint
- 473 mL
- Standard wine bottle
- 750 mL
Conversion table
UK gallons to Litres
| UK gallons | Litres |
|---|---|
| 1 | 4.5461 |
| 2 | 9.0922 |
| 3 | 13.638 |
| 4 | 18.184 |
| 5 | 22.73 |
| 6 | 27.277 |
| 7 | 31.823 |
| 8 | 36.369 |
| 9 | 40.915 |
| 10 | 45.461 |
| 15 | 68.191 |
| 20 | 90.922 |
| 25 | 113.65 |
| 50 | 227.3 |
| 100 | 454.61 |
Litres to UK gallons
| Litres | UK gallons |
|---|---|
| 1 | 0.21997 |
| 2 | 0.43994 |
| 3 | 0.65991 |
| 4 | 0.87988 |
| 5 | 1.0998 |
| 6 | 1.3198 |
| 7 | 1.5398 |
| 8 | 1.7598 |
| 9 | 1.9797 |
| 10 | 2.1997 |
| 15 | 3.2995 |
| 20 | 4.3994 |
| 25 | 5.4992 |
| 50 | 10.998 |
| 100 | 21.997 |
Formula and worked example
litres = UK gallons × 4.54609 (1 UK gallon is exactly 4.54609 L).
Convert 10 UK gallons to litres: 10 × 4.54609 = 45.4609 L.
When you need this
UK fuel economy figures, older garden ponds and water butts still use imperial gallons, which are larger than US gallons.
Questions people ask
How many litres are in a UK gallon?
One UK gallon is 4.54609 litres. 1 UK gallon is exactly 4.54609 L.
How do I convert UK gallons to litres?
Multiply the number of UK gallons by 4.54609.
What is 10 UK gal in L?
10 UK gallons is 45.4609 litres.
How do I convert litres back to UK gallons?
Multiply by 0.21996925: one litre is 0.21996925 UK gallons.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
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