1 Gallon to Liters

1 US gallon equals approximately 3.785 liters.

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How to use this tool

Enter gallons (us) in the fields above.
Results update instantly as you type — or click Calculate.
Read your liters and the full breakdown beneath it.

1 US gallon equals about 3.785 liters, a fundamental conversion for cooking, fuel, and fluid comparisons.

Frequently asked questions

How do I convert gallons (us) to liters?: Multiply the number of gallons (us) by 3.78541 to get liters.