Introduction
The Liters to Gallons Calculator changes liters into gallons in one step. Type a number in the liters box and the gallons answer shows up right away. You can also type gallons and get liters back. It works both ways.
Not all gallons are the same size. This tool gives you three choices: the US liquid gallon, the US dry gallon, and the imperial (UK) gallon. Pick the one you need, and the answer, the chart, and the table all change to match.
Here are the main facts the tool uses:
- 1 liter = 0.264172 US liquid gallons
- 1 liter = 0.227021 US dry gallons
- 1 liter = 0.219969 imperial (UK) gallons
- 1 US liquid gallon = 3.785412 liters
You also get a step-by-step solution, so you can see how the math works. A quick reference table lists common liter amounts, and you can click any row to load that value. Use this calculator for gas, water, milk, fish tanks, paint, recipes, or school work. For other unit changes, try our Unit Converter Calculator or the Metric Conversion Calculator.
How to use our Liters to Gallons Calculator
Type in a volume in liters or gallons, pick which kind of gallon you want, and the calculator shows the converted amount right away, plus the steps, a chart, and a quick reference table.
Liters (L): Enter the number of liters you want to change into gallons. The gallons box updates as you type.
Gallons: Enter a gallon amount here instead if you want to go the other way. The liters box will fill in for you.
Gallon Type: Choose US Gallon (Liquid), US Gallon (Dry), or Imperial Gallon (UK). Each one uses a different conversion factor, so both boxes and the result change when you switch.
Swap button: Click it to flip the two values between the liters and gallons boxes.
Calculate button: Click it to run the conversion again and refresh the result and steps.
Clear button: Click it to empty both boxes and start over.
Reset button: Click it to go back to the default of 1 liter and US liquid gallons.
Reference table: Click any row to load that liter value into the calculator.
Need a different shape or unit of volume? The Volume Conversion Calculator handles more units, while the Volume Calculator and Tank Volume Calculator work out the volume of a container first.
Liters to Gallons: What You Need to Know
A liter (L) is a metric unit of volume. It is used in most of the world to measure liquids like water, milk, soda, and fuel. A gallon is an imperial or US customary unit of volume. It is mainly used in the United States and, in a different size, in the United Kingdom. Converting liters to gallons lets you compare bottle sizes, gas prices, tank capacity, and recipe amounts across both systems.
The Three Kinds of Gallons
Not all gallons are the same size. This is the part that trips people up, so check which one you need before you convert:
- US liquid gallon — the most common one. 1 gallon = 3.785412 liters, so 1 liter = 0.264172 US gallons. Use this for gas, milk, paint, and pool water in the US.
- US dry gallon — used for dry goods like grain and fruit. 1 dry gallon = 4.404884 liters, so 1 liter = 0.227021 US dry gallons.
- Imperial (UK) gallon — used in the UK and some other countries. 1 imperial gallon = 4.546090 liters, so 1 liter = 0.219969 imperial gallons. An imperial gallon is about 20% bigger than a US liquid gallon.
How the Math Works
To change liters into gallons, multiply the liters by the conversion factor for your gallon type. For US liquid gallons:
gallons = liters × 0.264172
To go the other way, divide instead:
liters = gallons ÷ 0.264172 (or gallons × 3.785412)
Example: a 2-liter soda bottle is 2 × 0.264172 = 0.528344 US gallons, or about half a gallon.
Handy Numbers to Remember
- 1 L ≈ 0.26 US gallons (about a quarter of a gallon)
- 4 L ≈ 1.06 US gallons (a little more than one gallon)
- 1 US gallon ≈ 3.79 L
- 1 imperial gallon ≈ 4.55 L
- 50 L of fuel ≈ 13.21 US gallons
Where You Will Use This
Drivers use it to compare fuel economy and gas station prices between countries — pair it with the Gas Mileage Calculator, the Fuel Consumption Calculator, or the Fuel Cost Calculator to turn liters at the pump into miles per gallon and dollars. Cooks use it when a recipe from another country lists liters, alongside weight swaps like the Grams to Ounces Calculator and Pounds to Kilograms Calculator. Aquarium and pool owners use it for tank and water volume, which works well with the Aquarium Calculator and the Pool Volume Calculator. Trades and DIY projects lean on it too, from the Paint Calculator to the Pipe Volume Calculator. Shippers and buyers use it to match product labels that show both units, often next to a CBM Calculator for cubic meters. Because a UK gallon holds more than a US gallon, always confirm the gallon type when you read a foreign label or fuel report — otherwise your answer can be off by about 20%. If you need to convert the density or weight of that liquid as well, the Density Calculator can finish the job.