How to convert litres to UK gallons
One litre equals 0.219969 UK gallons, so multiply the number of litres by 0.219969:
UK gal = L × 0.219969
L = UK gal ÷ 0.219969 (1 UK gal = 4.5461 L)
Example: 4.546 L → 4.546 × 0.219969 = 0.99998 UK gal.
Going the other way, divide by 0.219969, or multiply by 4.5461; the UK gallons to litres converter does it for you.
Everyday values
| Litres | UK gallons | For example |
|---|---|---|
| 4.546 L | 0.99998 UK gal | one UK gallon |
| 10 L | 2.1997 UK gal | a bucket |
| 20 L | 4.3994 UK gal | a jerrycan |
| 50 L | 10.9985 UK gal | a car fuel tank, roughly |
When you need this conversion
The UK sells fuel by the litre but still quotes fuel economy in miles per (imperial) gallon, so the litres-to-UK-gallon conversion appears whenever you work out mpg from a fuel receipt. One UK gallon is exactly 4.54609 litres.
Litre to UK gallon conversion table
| L | UK gal | L | UK gal |
|---|---|---|---|
| 1 L | 0.219969 UK gal | 16 L | 3.5195 UK gal |
| 2 L | 0.439938 UK gal | 17 L | 3.7395 UK gal |
| 3 L | 0.659908 UK gal | 18 L | 3.9595 UK gal |
| 4 L | 0.879877 UK gal | 19 L | 4.1794 UK gal |
| 5 L | 1.0999 UK gal | 20 L | 4.3994 UK gal |
| 6 L | 1.3198 UK gal | 21 L | 4.6194 UK gal |
| 7 L | 1.5398 UK gal | 22 L | 4.8393 UK gal |
| 8 L | 1.7598 UK gal | 23 L | 5.0593 UK gal |
| 9 L | 1.9797 UK gal | 24 L | 5.2793 UK gal |
| 10 L | 2.1997 UK gal | 25 L | 5.4992 UK gal |
| 11 L | 2.4197 UK gal | 26 L | 5.7192 UK gal |
| 12 L | 2.6396 UK gal | 27 L | 5.9392 UK gal |
| 13 L | 2.8596 UK gal | 28 L | 6.1591 UK gal |
| 14 L | 3.0796 UK gal | 29 L | 6.3791 UK gal |
| 15 L | 3.2995 UK gal | 30 L | 6.5991 UK gal |
About the units
- Litre (L): one cubic decimetre (1,000 cm³).
- UK gallon (UK gal): the imperial gallon, exactly 4.54609 litres.
Both are units of volume. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many UK gallons are in one litre?
One litre is 0.219969 UK gallons. One UK gallon is 4.5461 litres.
How do I convert litres to UK gallons?
Multiply the value in litres by 0.219969. To go back, divide by 0.219969.
What is 4.546 L in UK gallons?
4.546 L = 0.99998 UK gal.
What is 10 L in UK gallons?
10 L = 2.1997 UK gal.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.