How to convert litres to US gallons
Enter a volume in litres and read it in US gallons. The result updates as you type. To see imperial (UK) gallons instead, change the To menu, or use the comparison table below.
A US gallon is exactly 3.785411784 litres, so one litre is 0.264172052358 US gallons. The imperial gallon used in the UK is larger: 1 L = 0.219969 imp gal.
1 litre = 0.264172052358 US gallons
Formula: US gallons = litres × 0.264172052358
- For US gallons, multiply the litres by 0.264172052358, or divide them by 3.785411784.
- For imperial gallons, use 1 L = 0.219969 imp gal instead.
- For a quick estimate of US gallons, divide by 4. The exact divisor is 3.785, so the estimate runs about 5% low.
Common conversions
| Litres (L) | US gallons (US gal) | Imperial gallons |
|---|---|---|
| 1 L | 0.264172 US gal | 0.219969 imp gal |
| 2 L | 0.528344 US gal | 0.439938 imp gal |
| 5 L | 1.32086 US gal | 1.09985 imp gal |
| 10 L | 2.64172 US gal | 2.19969 imp gal |
| 20 L | 5.28344 US gal | 4.39938 imp gal |
| 50 L | 13.2086 US gal | 10.9985 imp gal |
| 100 L | 26.4172 US gal | 21.9969 imp gal |
| 200 L | 52.8344 US gal | 43.9938 imp gal |
Values are computed by the same converter as above, rounded to six significant digits. Need the other direction? See US Gallons to Litres.
Worked examples
A fuel tank
A 50 litre fuel tank holds 50 L = 13.21 US gal.
A water container
A 20 litre water container: 20 L = 5.28 US gal. In imperial gallons it is 20 L = 4.40 imp gal.
An aquarium
A 200 litre aquarium is 200 L = 52.8 US gal.
Things to keep in mind
- A gallon is not one size. The US gallon (3.785 L) and the imperial gallon (4.546 L) differ by about 20%, so always check which one a figure uses.
- This matters most for fuel economy: a UK figure in miles per imperial gallon is about 20% higher than the same car’s figure in miles per US gallon, because one imperial gallon is 1 imp gal = 1.20095 US gal.
- Volumes cannot be negative, so the converter rejects a negative value.