Convert Gallons to Liters

Use our accurate converter to change gallons into liters. This tool is simple to use and works instantly.

How to Calculate

To change gallons to liters, you just need to know the conversion factor.

Rule: 1 Gallons = 3.78541 Liters

Gallons to Liters

Pre-defined calculator for direct gallons to liters conversion.

From

Gallons (US) (gal)

To (Result)

Liters (l)

Formula: 1 Gallons = 3.78541 Liters

Definition: The US liquid gallon is a unit of volume equal to 128 US fluid ounces or exactly 3.785411784 liters.

History: Based on the medieval wine gallon used in England.

Where it is used: Primary unit for fuel and milk in the United States.

Calculation: To convert gallons to liters, multiply the value by the conversion factor (3.78541).

Example: convert 15 gal to l:
15 gal = 15 × 3.78541 l = 56.78115 l

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