Convert US gallons to liters. Live result, plus a quick-reference table for common values.
Multiply the US gallon value by 3.78541. So 1 US gallon = 3.78541 L, and the calculator above does it instantly for any number.
There are 3.78541 liters in one US gallon. The reference table shows the conversion for common values.
Yes, completely free, no sign-up, and it runs entirely in your browser, so nothing is uploaded.