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.
Australia is fully metric under the National Measurement Act 1960; imperial units appear only in trade with the US and in older documents.
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 Measurement Institute (NMI) — Australia's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.