Liter to US Gallon Converter
Converts liter to us gallon (L to gal) and back. The conversion factor is shown below every result.
How to Convert Liter to US Gallon
What Is a Liter?
The liter (L) is a metric unit of volume equal to 1,000 cubic centimeters.
What Is an US Gallon?
The US gallon (gal) is a US customary unit of volume defined as exactly 231 cubic inches.
Common Liter to US Gallon Reference Points
Real-world reference values for quick sanity checks.
| Item | Liter (L) | US Gallon (approx.) |
|---|---|---|
| A standard car fuel tank (approx.) | 55 L | 14.53 gal |
| A 2-liter soda bottle | 2 L | 0.53 gal |
| A bathtub (approx.) | 150 L | 39.63 gal |
| Reference values are illustrative approximations for common items, not measured specifications. | ||
Liter to US Gallon Conversion Table
| Liter (L) | US Gallon (gal) |
|---|---|
| 1 L | 0.264172 gal |
| 2 L | 0.528344 gal |
| 5 L | 1.32086 gal |
| 10 L | 2.641721 gal |
| 20 L | 5.283441 gal |
| 50 L | 13.208603 gal |
| 100 L | 26.417205 gal |
| 150 L | 39.625808 gal |
| 200 L | 52.83441 gal |
| Source: NIST SP 811, Appendix B (1 US gallon = 3.785411784 L exactly) | |
Frequently Asked Questions
How do I convert liters to gallons?
Multiply the liter value by 0.2641720524. For example, 40 L × 0.2641720524 = 10.567 gal.
Is this the US gallon or the UK imperial gallon?
This page uses the US liquid gallon (3.785411784 L). The UK imperial gallon is larger, about 4.54609 L, so a UK recipe or fuel figure quoted in gallons will need a different conversion factor.
How do I estimate fuel economy in liters per 100 km from US mpg?
That's a separate, non-linear conversion (it inverts the ratio), not a direct multiplication by this page's factor. It's a good candidate for its own dedicated calculator.
Related Volume Converters
A good measuring tool marked in both L and gal removes the guesswork at the point of use.