Litres to Gallons Converter
Convert litres to US gallons — one US gallon is 3.785 litres. Results update as you type; exact factors shown.
One litre is 0.2642 US gallons — see the exact factor, not a rounded rule of thumb.
How the litres to gallons converter works
Volumes convert through the litre (exactly 1 dm³). The US gallon is exactly 3.785411784 L (231 cubic inches); the imperial gallon is exactly 4.54609 L. A US fluid ounce is 29.5735 mL, an imperial fluid ounce 28.4131 mL; a US pint is 16 US fl oz, an imperial pint 20 imperial fl oz.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common volume conversions
| From | To | Units |
|---|---|---|
| 1 L | 0.2642 US gal | litre to US gallons |
| 2 L | 0.5283 US gal | litres to US gallons |
| 5 L | 1.3209 US gal | litres to US gallons |
| 10 L | 2.6417 US gal | litres to US gallons |
| 20 L | 5.2834 US gal | litres to US gallons |
| 25 L | 6.6043 US gal | litres to US gallons |
| 40 L | 10.5669 US gal | litres to US gallons |
| 50 L | 13.2086 US gal | litres to US gallons |
| 60 L | 15.8503 US gal | litres to US gallons |
| 100 L | 26.4172 US gal | litres to US gallons |
| 200 L | 52.8344 US gal | litres to US gallons |
| 500 L | 132.086 US gal | litres to US gallons |
Units in this converter and their exact factors
| Unit | Symbol | One unit in litres |
|---|---|---|
| millilitre | mL | 0.001 litre |
| litre | L | 1 litre |
| cubic metre | m³ | 1,000 litre |
| teaspoon (metric) | tsp | 0.005 litre |
| tablespoon (metric) | tbsp | 0.015 litre |
| cup (metric) | cup | 0.25 litre |
| US fluid ounce | US fl oz | 0.0295735296 litre |
| US cup | US cup | 0.2365882365 litre |
| US pint | US pt | 0.473176473 litre |
| US gallon | US gal | 3.785411784 litre |
| imperial fluid ounce | imp fl oz | 0.0284130625 litre |
| imperial pint | imp pt | 0.56826125 litre |
| imperial gallon | imp gal | 4.54609 litre |
| cubic foot | ft³ | 28.316846592 litre |
FAQFrequently asked questions about volume conversion
How many litres in a US gallon?
3.78541 litres.
Is a UK gallon the same?
No — the imperial gallon is 4.546 litres, about 20% larger. Use the UK gallon page for that.
What is 50 litres in gallons?
13.2 US gallons — a typical car tank.
How many litres in a US quart?
0.946 litres, just under a litre.
Why are the two gallons different?
The US kept an older English wine gallon; Britain redefined its gallon in 1824 as ten pounds of water.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.