Litres to US Gallons Converter
Convert litres to US liquid gallons for water containers, household quantities, and volume comparisons. This tool uses the US liquid gallon; it does not use the larger Imperial gallon.
Enter a zero or positive amount. Decimal values are supported. Only the displayed result is rounded.
Reference: NIST Guide to the SI, Appendix B.9 (volume conversion factors). The displayed result is rounded; it is a unit conversion, not a measurement of water need.
Formula
US gal = L ÷ 3.785411784
Example: 2 L is about 0.528 US gal.
About these units
One US liquid gallon is approximately 3.785412 L. An Imperial gallon is approximately 4.54609 L, so the two gallon units are not interchangeable.
Everyday conversion examples
Use this direction when the amount is already in litres and you need the equivalent in US liquid gallons—for example, when comparing a metric container with a US product label.
| Litres | US liquid gallons |
|---|---|
| 0.5 | 0.132 |
| 1 | 0.264 |
| 2 | 0.528 |
| 5 | 1.321 |
Examples are rounded for readability. Use the calculator above for another amount; it keeps the conversion factor until the final display.
Why does a litre convert to fewer than one gallon?
A US liquid gallon is larger than one litre, so 1 L is about 0.264 US gal.
Is this an Imperial-gallon conversion?
No. This page uses the US liquid gallon. One Imperial gallon is about 4.546 L; use the Imperial gallons converter when the source specifies that unit.
Source
Conversion factors are based on customary and metric volume relationships documented by the National Institute of Standards and Technology (NIST), Guide to the SI, Appendix B.9. NIST reports rounded factors; this page displays a rounded result.