Quick Answer
1 liter (L) = 0.264172 gallons (gal), and 1 gallon = 3.7854 liters. Gallons is the larger unit, so the same physical amount needs a bigger number when measured in liters. Convert either way with the live tool below or the dedicated converter pages.
Key Facts
- 1 liter (L) = 0.264172 gal
- 1 gallon (gal) = 3.7854 L
- Conversion is exact multiplication - no rounding in the factor
- Table below covers common values in both directions
- Dedicated converters: L→gal and gal→L pages with live tools
Frequently Asked Questions
Which is bigger, a liter or a gallon?
One liter equals 0.264172 gal, and one gallon equals 3.7854 L. The unit with the larger factor is the physically bigger one.
How do I convert liters to gallons?
Multiply by the factor: value in gal = value in L × 0.264172. Example: 5 L = 1.3209 gal. Reverse: divide by 0.264172 (or multiply by 3.7854).
Why are liters and gallons different?
They are two different units measuring the same physical quantity. A liter is defined as exactly 0.264172 gal, and a gallon as exactly 3.7854 L. Because the units differ in size, the number you write down for the same amount depends on which unit you use - the conversion factor itself is exact, with no rounding.
Is there a quick way to convert without a calculator?
Memorize the 1-to factor: 1 liter ≈ 0.264172 gal. Then multiply. For 2 L that's ≈ 0.528344 gal.