How to convert liters to us gallons
Multiply liters by approximately 0.2641720524 to obtain US liquid gallons. This page does not use the larger imperial gallon.
For example, 10 L equals 2.64172052 gal.
Liters to US Gallons reference table
| Liters | US Gallons |
|---|---|
| 1 L | 0.26417205 gal |
| 4 L | 1.05668821 gal |
| 10 L | 2.64172052 gal |
| 20 L | 5.28344105 gal |
| 50 L | 13.20860262 gal |
| 100 L | 26.41720524 gal |
Updated by ConvertPulse · September 7, 2026
Confirm the gallon before converting
US liquid gallons appear on American fuel and container labels. Imperial gallons have a different volume, so a result copied from an imperial source will not match this calculator.
Container capacity may be nominal rather than usable. The unit conversion can translate the stated capacity, but it cannot account for headspace, reserve volume, or manufacturer tolerances.
Direction check
A US gallon contains more than three liters, so the gallon result should be much smaller than the liter input. Twenty liters is about 5.28344 US gal.
Method and quality checks
- Calculation
- Liters × 0.2641720524 = US Gallons. The calculator keeps the stored factor through the operation and rounds only the displayed result to the selected or page-supported precision.
- Unit convention
- US customary liquid measures are used when a unit name has a regional variant. Imperial and metric recipe units can produce different answers.
- Input validation
- Finite numeric inputs are accepted. Results outside the supported numeric range are rejected instead of being displayed as valid measurements.
- Reasonableness check
- 10 L produces 2.64172052 gal. Check the direction and approximate scale before relying on a more precise displayed value.
Deeper method: Kitchen measurement essentials.
How to round this result
Two decimal places is usually enough for fuel or container comparisons. Keep the unrounded figure for cost calculations, then round the final currency amount separately.
Liters and US gallons are not imperial gallons
This page converts liters to US liquid gallons. One US liquid gallon equals exactly 3.785411784 liters. The imperial gallon used in some UK and Commonwealth contexts is larger, so its factor must not be substituted.
- Check whether a source means US or imperial gallons.
- Use the unrounded result for fuel-use and container-capacity calculations.
- Four liters is about 1.057 US gallons.
Reference: NIST volume conversion factors.
Update and correction record
ConvertPulse updated this liters-to-us gallons page on September 7, 2026. Automated release checks verify calculation outputs, validation behavior, metadata, links, and rendering. The unit convention, worked values, limitations, and primary reference are published here so readers can inspect and challenge them. No individual professional credential is claimed.
If a value or convention appears wrong, submit a correction with the expected result and supporting source.
Frequently asked questions
What is the conversion formula?
Liters × 0.2641720524 = US Gallons.
Are 4 liters and 1 gallon the same?
Four liters is about 1.05669 US gallons. One US gallon is exactly 3.785411784 liters, while one imperial gallon is exactly 4.54609 liters.
How should this result be rounded?
Two decimal places is usually enough for fuel or container comparisons. Keep the unrounded figure for cost calculations, then round the final currency amount separately.