US gallon versus other gallons
A US liquid gallon is exactly 3.785411784 liters. This is different from the imperial gallon used in the UK and some other contexts.
Examples
1 liter is about 0.264172052 US gallons. 10 liters is about 2.64172052 US gallons.
Why the label matters
Always check whether a source means US liquid gallons or imperial gallons before comparing values.
Liters to US Gallons Formula
One US liquid gallon equals exactly 3.785411784 liters. To convert liters to US gallons, divide the liter value by 3.785411784.
Reverse Conversion
To convert US liquid gallons to liters, multiply the gallon value by 3.785411784.
Worked Examples
- 1 liter is approximately 0.264172 US gallons.
- 10 liters is approximately 2.64172 US gallons.
- 20 liters is approximately 5.28344 US gallons.
US Gallon vs Imperial Gallon
The US liquid gallon is different from the imperial gallon. Always confirm which gallon definition is required before using a conversion in a specification, recipe, vehicle context or technical document.
Use the Tervilo Volume Converter
Use the Tervilo Volume Converter for liters, US gallons and other supported volume units.
The Liters-to-US-Gallons Formula
One US liquid gallon equals exactly 3.785411784 liters. Therefore, the standard conversion from liters to US gallons is:
It is important to specify US gallons because the Imperial gallon used in the United Kingdom and some other contexts is larger than the US liquid gallon.
Worked Examples
| Liters | US Gallons | Rounded Result |
|---|---|---|
| 1 L | 0.2641720524 US gal | 0.264 US gal |
| 5 L | 1.320860262 US gal | 1.32 US gal |
| 10 L | 2.641720524 US gal | 2.64 US gal |
| 20 L | 5.283441048 US gal | 5.28 US gal |
US Gallon vs Imperial Gallon
A US liquid gallon is approximately 3.785 liters, while an Imperial gallon is approximately 4.546 liters. These are different units. If a source simply says gallon, check the regional or technical context before performing the conversion.
Converting US Gallons Back to Liters
To convert US liquid gallons back to liters, multiply the gallon value by 3.785411784.
Rounding and Measurement Context
Fuel, beverage, container and laboratory measurements may require different levels of precision. For general comparisons, two or three decimal places may be enough. Use the precision required by the original measurement rather than adding unnecessary digits.
Common Liters-to-US-Gallons Mistakes
- Using the Imperial gallon factor instead of the US liquid gallon factor.
- Multiplying when the conversion requires division.
- Rounding the conversion factor too early.
- Failing to identify which gallon definition the source uses.
Practical Uses
This conversion is useful for fuel capacity, liquid containers, recipes, product specifications, vehicle information and international measurements.
Use the Tervilo Liters-to-US-Gallons Converter
Enter the liter value and confirm that the target unit is US gallons. This is especially important when comparing information from US and UK sources.