gallons to liters
Unit Converters

gallons to liters

Convert US gallons to liters (or liters to US gallons) instantly. Type a value in either field and the other updates live; use the swap button to flip the direction.

liters to gallons Convert liters to US gallons and back. oz to ml Convert US fluid ounces to milliliters and back. ml to oz Convert milliliters to US fluid ounces and back. Unit Converter Length, weight, temperature, volume, speed, and data.

How It Works

One US gallon is about 3.78541 liters, so to convert gallons to liters you multiply by 3.78541. To go the other way, divide liters by 3.78541.

Frequently Asked Questions

How many liters are in a US gallon?
One US gallon is about 3.78541 liters. To convert gallons to liters, multiply the number of gallons by 3.78541.
Is the US gallon the same as the imperial gallon?
No. The imperial gallon used in the UK is about 4.54609 liters, while the US gallon is about 3.78541 liters. This calculator uses the US gallon.
Why are US fuel economy figures in miles per gallon?
The United States sells fuel in gallons and measures distance in miles, so miles per gallon is the natural unit. Most other countries use liters per 100 kilometers instead.

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