Gallons to Liters Converter
Formula
liters = gallons × 3.78541
To convert US gallons to liters, multiply by 3.78541. One US gallon equals approximately 3.785 liters.
Frequently Asked Questions
How many liters is 1 gallon?
1 US gallon = approximately 3.785 liters.
What's the difference between US and UK gallons?
A US gallon is 3.785 liters. A UK (imperial) gallon is 4.546 liters — about 20% larger.