Volume
Gallon to Liters
Convert gallon to liters instantly.
About this conversion
Gallon bruges i USA til brændstof, maling og store væskemængder. Amerikanere måler benzinforbrug i miles per gallon (mpg), og en gallon mælk er standard i supermarkeder. 1 US gallon ≈ 3,785 liter. Liters (l) are the everyday unit for larger liquid volumes — milk, water, and fuel. 1 Gallon equals 3.7854 liters. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
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 do you convert gallon to liters?
Multiply the number of gallon by 3.7854 to get liters. Example: 10 gal × 3.7854 = 37.854 l.
Are gallon bigger or smaller than liters?
Gallon is larger than Liters. One gallon equals 3.7854 liters, so the result is a larger number when converting from gallon to liters.
What is 5 gallon in liters?
5 gal equals 18.927 l.
How many gallon are in 1 liter?
1 l equals 0.26417 gal. This is the reverse conversion — useful if you have a value in liters and want it in gallon.
What is gallon?
Gallon bruges i USA til brændstof, maling og store væskemængder. Amerikanere måler benzinforbrug i miles per gallon (mpg), og en gallon mælk er standard i supermarkeder. 1 US gallon ≈ 3,785 liter.
What is liter used for?
Liters (l) are the everyday unit for larger liquid volumes — milk, water, and fuel.