Gallons to Liters
Convert gallons to liters instantly.
How to Do It Manually
One US gallon equals 3.78541 liters. Multiply gallons by 3.78541.
liters = gallons × 3.78541
Frequently Asked Questions
Is this US gallons or UK gallons?
This converts US liquid gallons. One UK (imperial) gallon = 4.54609 liters.
How many liters is a half gallon?
0.5 × 3.78541 ≈ 1.893 liters.