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Exact relationship and formula
1 U.S. liquid gallon = 3.785411784 liters exactly. 1 Imperial gallon = 4.54609 liters exactly.
Reverse mode applies the inverse relationship from the same exact definition.
Worked example
10 liters is approximately 2.641720524 U.S. liquid gallons. One U.S. gallon equals 3.785411784 liters exactly.
U.S. liquid gallon is the default. Imperial gallon is available only through the explicit selector; the two definitions are never mixed silently.
Common liters reference values
| Liters | Conversion |
|---|---|
| 1 L | 0.264172052358 US gal |
| 2 L | 0.528344104716 US gal |
| 3.78541 L | 1 US gal |
| 5 L | 1.32086026179 US gal |
| 10 L | 2.64172052358 US gal |
| 20 L | 5.28344104716 US gal |
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