How many liters in a gallon?

1 Gallon


3.7854118 Liters

Gallons to Liters (How many liters in a gallon?)

This is a conversion calculator that is used to convert the volume in gallons "gal" to volume in liters "L". The first procedure is to enter the value in gallons in the blank text field. Press the ‘Convert' button to execute the conversion from gallons to liters. The conversion result is displayed in the bottom panel of the calculator in liters. The "Reset" button is used to erase all data of the previous conversions from the calculator.

For example;

Convert 50 gallons to liters


First, enter the value in gallons (50) in the blank text field and press the ‘Convert' button. This gives you the result in liters as;

50 Gallons = 189.27059 Liters

It means that there are 189.27059 liters in 50 gallons.

Use the same procedure when converting new values in gallons to get the corresponding results in liters.

Gallons to Liters Conversion

Enter a US fluid gallon value to convert into liters and click on the "convert" button.

How many liters in a gallon?

The volume units' conversion factor of gallons to liters varies depending on the standard used in the conversion.

1 Gallon [Fluid, US] = 3.7854118 Liters

1 Gallon [Dry, US] = 4.4048838 Liters

1 Gallon [UK] = 4.54609 Liters

Therefore, there are 3.7854118 Liters in one US fluid gallon, 4.4048838 Liters in one US dry gallon and 4.54609 Liters in one UK gallon. One liter is equal to 61.0237 cubic inches and a gallon is defined as 231 cubic inches.

Thus 231 / 61.0237 = 3.784118 liters in one gallon.

If you want to determine the number of liters in a gallon, multiply the value in gallons by the conversion factor.


A gallon is a volume unit in the US customary and imperial systems abbreviated as "gal". One gallon is equal to 128 fluid ounces, 16 cups, 8 pints and 4 quarts.

A liter is a volume unit in the metric system abbreviated as "L". One liter is equal to 0.22 imperial gallons and 0.26 US gallons.