Volume
Gallon to Liters
Convert gallon to liters instantly.
About this conversion
Gallon bruges i USA til brændstof og store væskemængder. 1 US gallon ≈ 3,785 liter. Liters (l) are the everyday unit for larger liquid volumes — milk, water, and fuel. Use the converter above to quickly go from gallon to liters.
How to use
Enter a value in the gallon field and instantly see the result in liters. Click the swap button to reverse the conversion.
Manual calculation
1 gallon = 3.7854 liters. Example: 10 gal = 37.854 l.
Frequently asked questions
How many liters are in 1 gallon?
1 Gallon equals 3.7854 liters.
When do you use liters?
Liters (l) are the everyday unit for larger liquid volumes — milk, water, and fuel.