Liters to Gallons Converter
Convert liters to US gallons — one US gallon is 3.785 liters. Results update as you type; exact factors shown.
One liter is 0.2642 US gallons — see the exact factor, not a rounded rule of thumb.
How the liters to gallons converter works
Volumes convert through the liter (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 US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common volume conversions
| From | To | Units |
|---|---|---|
| 1 L | 0.2642 US gal | liter to US gallons |
| 2 L | 0.5283 US gal | liters to US gallons |
| 5 L | 1.3209 US gal | liters to US gallons |
| 10 L | 2.6417 US gal | liters to US gallons |
| 20 L | 5.2834 US gal | liters to US gallons |
| 25 L | 6.6043 US gal | liters to US gallons |
| 40 L | 10.5669 US gal | liters to US gallons |
| 50 L | 13.2086 US gal | liters to US gallons |
| 60 L | 15.8503 US gal | liters to US gallons |
| 100 L | 26.4172 US gal | liters to US gallons |
| 200 L | 52.8344 US gal | liters to US gallons |
| 500 L | 132.086 US gal | liters to US gallons |
Units in this converter and their exact factors
| Unit | Symbol | One unit in liters |
|---|---|---|
| milliliter | mL | 0.001 liter |
| liter | L | 1 liter |
| cubic meter | m³ | 1,000 liter |
| teaspoon (metric) | tsp | 0.005 liter |
| tablespoon (metric) | tbsp | 0.015 liter |
| cup (metric) | cup | 0.25 liter |
| US fluid ounce | US fl oz | 0.0295735296 liter |
| US cup | US cup | 0.2365882365 liter |
| US pint | US pt | 0.473176473 liter |
| US gallon | US gal | 3.785411784 liter |
| imperial fluid ounce | imp fl oz | 0.0284130625 liter |
| imperial pint | imp pt | 0.56826125 liter |
| imperial gallon | imp gal | 4.54609 liter |
| cubic foot | ft³ | 28.316846592 liter |
FAQFrequently asked questions about volume conversion
How many liters in a US gallon?
3.78541 liters.
Is a UK gallon the same?
No — the imperial gallon is 4.546 liters, about 20% larger. Use the UK gallon page for that.
What is 50 liters in gallons?
13.2 US gallons — a typical car tank.
How many liters in a US quart?
0.946 liters, just under a liter.
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 Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.