Volume conversion
Litres to US gallons (L to gal)
Convert a liquid quantity in litres to US liquid gallons. If your source means UK imperial gallons, use the UK option in the full unit converter instead.
1 L ≈ 0.2642 gal — the calculator keeps the stored factor; this summary may be rounded.
A fuel quantity of 40 L
- Starting measurement
- 40 L
- Converted value (rounded if needed)
- 10.5669 gal
This is a volume comparison. Fuel economy figures such as litres per 100 km and miles per gallon require a different calculation.
Litres to US gallons conversion chart
| litres | US gallons |
|---|---|
| 1 L | 0.2642 gal |
| 2 L | 0.5283 gal |
| 3 L | 0.7925 gal |
| 4 L | 1.0567 gal |
| 5 L | 1.3209 gal |
| 10 L | 2.6417 gal |
| 15 L | 3.9626 gal |
| 20 L | 5.2834 gal |
| 25 L | 6.6043 gal |
| 30 L | 7.9252 gal |
| 40 L | 10.5669 gal |
| 50 L | 13.2086 gal |
| 60 L | 15.8503 gal |
| 75 L | 19.8129 gal |
| 100 L | 26.4172 gal |
| 150 L | 39.6258 gal |
| 200 L | 52.8344 gal |
| 250 L | 66.043 gal |
| 500 L | 132.086 gal |
| 750 L | 198.129 gal |
| 1000 L | 264.172 gal |
How to convert by hand
Reference relationship (display may be rounded)
1 L = 0.264172052 gal (US)
- Multiply the amount in litres by the number of US gallons per unit.
- Use the calculator for the stored precision; copying a short displayed factor introduces extra rounding.
- Round the result to suit your measurement, after completing the calculation.
Related conversions
About litres and US gallons
Check the measurement system as well as the unit name. These pair pages use US liquid gallons and US fluid ounces. Choose an explicitly UK unit in the full converter for imperial measures.
Litre
MetricOne cubic decimetre, or 1,000 millilitres. L and the spelling liter refer to the same unit.
Commonly used for: Bottle capacities, fuel volumes and liquid recipe quantities.
US liquid gallon
US customary231 cubic inches, or about 3.785 litres. This is the US liquid gallon, smaller than the imperial gallon; it is not the US dry gallon.
Commonly used for: US fuel quantities, milk containers and liquid tank capacities.
Questions
Are US and UK gallons the same size?
No. A US liquid gallon is 3.785411784 L; an imperial gallon is 4.54609 L. This page is explicitly for the US liquid gallon, even if a label simply says gal.
How do I convert US gallons back to litres?
Enter the value in the US gallons field above to work backwards, or open the US gallons to Litres converter. This uses the stored factors rather than dividing by a rounded number copied from the chart.
Why might the chart and calculator show different decimal places?
The chart uses a compact rounded display. The editable calculator can show up to six decimal places and uses the factors or temperature formulas stored in the library. More displayed digits do not make the original measurement more precise.
Precision and source
The calculator uses stored conversion factors and temperature formulas, then rounds the result for display. A short decimal in a chart is not a claim of exactness. For a calculation with several steps, keep as much precision as the original measurement supports and round at the end.
Reference: NIST SP 811 conversion factors. Its alphabetical tables distinguish unit variants and temperature readings from intervals. Published by ToolsNow. Report a conversion problem.
Need a different unit?
The full converter handles length, mass, volume, area, speed and temperature, including separate choices for US and UK liquid measures.
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