Liters to Gallons
An instant liters-to-gallons converter, with the formula and a reference table below.
| Liters | Gallons |
|---|---|
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 3 L | 0.792516 gal |
| 5 L | 1.32086 gal |
| 10 L | 2.641721 gal |
| 25 L | 6.604301 gal |
| 50 L | 13.208603 gal |
| 100 L | 26.417205 gal |
How to use
- Enter a value in the Liters field.
- The Gallons figure appears immediately — no button to press.
- Typing in the Gallons field converts back to Liters the same way.
- Use the reference table for the values that come up most often.
Liters to Gallons formula
To convert liters to gallons, multiply by 0.264172052.
gal = L × 0.264172052
Why this factor: the liter and the gallon are both defined against the liter, so dividing one definition by the other gives 0.264172052 directly. Both definitions are set out in full below.
To go the other way, divide by 0.264172052 — or use the Gallons to Liters converter, which is the same calculation reversed.
Worked example
Take 8 L and multiply by the factor 0.264172052: the result is 2.113376 gal.
8 L × 0.264172052 = 2.113376 gal
The converter above does this for any value you type, in either direction.
What is a liter?
A liter is the everyday metric unit of volume, equal to the space in a 10 cm cube.
Definition: Exactly one cubic decimeter, so exactly 0.001 cubic meter. Accepted for use with SI but not an SI unit itself.
Where it is used: Fuel, beverages, engine displacement, and recipe volumes across the metric world.
What is a gallon?
A US liquid gallon is the standard large-volume unit in the United States.
Definition: Defined as exactly 231 cubic inches, which works out to exactly 3.785411784 liters.
Where it is used: Fuel sales, milk and beverage containers, and paint in the US.
Worth knowing: The imperial gallon used in the UK and Canada is about 20% larger, at 4.54609 L — so 'miles per gallon' figures are not comparable between the two.
Liters vs Gallons
The liter is a metric unit while the gallon is a US customary unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many gallons are in a liter?
One liter equals 0.264172052 gallons.
What is the formula to convert liters to gallons?
Multiply the number of liters by 0.264172052. To reverse it, divide by 0.264172052 instead.
How do I convert gallons back to liters?
Divide by 0.264172052, which is the same as multiplying by 3.78541178.
How many gallons are in 10 liters?
10 L works out to 2.641721 gal.
Is there anything to watch out for with gallons?
The imperial gallon used in the UK and Canada is about 20% larger, at 4.54609 L — so 'miles per gallon' figures are not comparable between the two.
How is the liter defined?
Exactly one cubic decimeter, so exactly 0.001 cubic meter. Accepted for use with SI but not an SI unit itself.