Gallons to Liters Converter
Enter the volume in gallons below to get the value converted to liters.
Do you want to convert liters to gallons?
How to Convert Gallons to Liters
To convert a measurement in gallons to a measurement in liters, multiply the volume by the following conversion ratio: 3.785412 liters/gallon.
Since one gallon is equal to 3.785412 liters, you can use this simple formula to convert:
liters = gallons × 3.785412
The volume in liters is equal to the volume in gallons multiplied by 3.785412.

How Many Liters Are in a Gallon?
There are 3.785412 liters in a gallon, which is why we use this value in the formula above.
1 gal = 3.785412 L
Gallons and liters are both units used to measure volume. Keep reading to learn more about each unit of measure.
What Is a Gallon?
The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[1] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.
The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.
Learn more about gallons.
What Is a Liter?
A liter is a unit of volume equal to 1,000 cubic centimeters or 0.264172 US gallons.[2] The liter is a special name defined for the cubic decimeter and is exactly equal to the volume of one cubic decimeter (1 decimeter is 1/10 of a meter, or 10 centimeters).
The liter is an SI accepted unit for volume for use with the metric system. A liter is sometimes also referred to as a litre. Liters can be abbreviated as L, and are also sometimes abbreviated as l or ℓ. For example, 1 liter can be written as 1 L, 1 l, or 1 ℓ.
Learn more about liters.
Gallon to Liter Conversion Table
Gallons | Liters |
---|---|
1 gal | 3.7854 L |
2 gal | 7.5708 L |
3 gal | 11.36 L |
4 gal | 15.14 L |
5 gal | 18.93 L |
6 gal | 22.71 L |
7 gal | 26.5 L |
8 gal | 30.28 L |
9 gal | 34.07 L |
10 gal | 37.85 L |
11 gal | 41.64 L |
12 gal | 45.42 L |
13 gal | 49.21 L |
14 gal | 53 L |
15 gal | 56.78 L |
16 gal | 60.57 L |
17 gal | 64.35 L |
18 gal | 68.14 L |
19 gal | 71.92 L |
20 gal | 75.71 L |
21 gal | 79.49 L |
22 gal | 83.28 L |
23 gal | 87.06 L |
24 gal | 90.85 L |
25 gal | 94.64 L |
26 gal | 98.42 L |
27 gal | 102.21 L |
28 gal | 105.99 L |
29 gal | 109.78 L |
30 gal | 113.56 L |
31 gal | 117.35 L |
32 gal | 121.13 L |
33 gal | 124.92 L |
34 gal | 128.7 L |
35 gal | 132.49 L |
36 gal | 136.27 L |
37 gal | 140.06 L |
38 gal | 143.85 L |
39 gal | 147.63 L |
40 gal | 151.42 L |
References
- National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
- National Institute of Standards and Technology, Units outside the SI, https://physics.nist.gov/cuu/Units/outside.html
More Gallon & Liter Conversions
- gallons to quarts
- gallons to pints
- gallons to cups
- gallons to fluid ounces
- gallons to tablespoons
- gallons to teaspoons
- gallons to cubic inches
- gallons to cubic feet
- gallons to cubic yards
- gallons to milliliters
- gallons to cubic centimeters
- gallons to cubic meters
- quarts to liters
- pints to liters
- cups to liters
- fluid ounces to liters
- tablespoons to liters
- teaspoons to liters
- cubic inches to liters
- cubic feet to liters
- cubic yards to liters
- milliliters to liters
- cubic centimeters to liters
- cubic meters to liters