How To Convert Liters to Gallon
Formula: Gallon (gal) = Liters (L) × 0.264172
Example: Convert 3.5 L to gal, 3.5 × 0.264172 = 0.924602 gal.
To convert liters to gallon, you multiply the liters value by 0.264172.
This works because 1 liter is a little more than one quarter of a gallon.
Use a calculator for best accuracy, especially for large numbers.
Quick Answer
1 L = 0.264172 gal
- 2 L = 0.528344 gal
- 5 L = 1.320860 gal
- 10 L = 2.641720 gal
Conversion Formula
gal = L × 0.264172
This means you take the number of liters you have, then multiply by 0.264172 to get the same volume in gallons.
The number 0.264172 is the gallons in 1 liter, using the US liquid gallon.
- Write down your value in liters.
- Multiply it by 0.264172.
- The result is the value in gallons.
Liter
A liter is a metric unit of volume used to measure liquids and gases. Its symbol is L.
The liter became widely used with the metric system, and it is closely tied to cubic measurements, 1 L equals 1 cubic decimeter.
Today, liters are standard in most countries for everyday liquid amounts.
- Water and soft drink bottles, like 1 L and 2 L sizes
- Fuel and engine fluids, like coolant and oil
- Cooking and kitchen measuring jugs
- Lab and medical liquid measurements
- Aquariums and small tank capacities
Gallon
A gallon is a unit of volume commonly used in the United States. Its symbol is gal.
The gallon has a long history from older measurement systems, and different gallon sizes existed over time.
In the US today, the most common is the US liquid gallon, used in fuel, containers, and many household measurements.
- Gasoline and diesel sold at fuel stations
- Milk and juice containers
- Paint and chemical containers
- Water use and flow rates in home systems
- Pool and tank volume estimates in US units
Is this Conversion of Liters To Gallon Accurate?
Yes. This conversion is based on the standard US liquid gallon definition, where 1 gallon is defined as exactly 231 cubic inches. From that exact definition, the liters to gallon factor (0.264172 gal per liter) is a studied, repeatable value used across engineering references, product labels, and technical documentation.
Our converter uses this standard so your results stay consistent for school, work, buying liquids, and general measurement tasks. For more details on how we choose and apply standards, read our accuracy standards.
Real Life Examples
Here are practical ways liters to gallon conversion shows up in daily life.
- Buying soda for a party: You have a 2 L bottle. That is 2 × 0.264172 = 0.528344 gal, a little over half a gallon.
- Planning drinking water: You store 20 L of water for emergencies. That is 20 × 0.264172 = 5.283440 gal.
- Mixing car coolant: Your manual says add 5 L of coolant mix. That equals 1.320860 gal, useful if your container is marked in gallons.
- Small aquarium volume: A tank is 50 L. Convert it to gallons, 50 × 0.264172 = 13.208600 gal.
- Home paint project: You bought 10 L of paint. That equals 2.641720 gal, helpful when comparing to 1-gallon cans.
- Fuel can capacity: A jerry can holds 5 L. That is 1.320860 gal, handy if you track fuel in gallons.
- Large storage tank: A container holds 200 L. That is 200 × 0.264172 = 52.834400 gal.
Quick Tips
- Use this fast rule: gallons = liters × 0.264172.
- For a rough mental estimate, liters are about one quarter of a gallon.
- Double-check which gallon is meant, US gallon is different from UK gallon.
- When comparing product sizes, convert everything to one unit first.
- For large values, use a calculator to avoid rounding errors.
- Keep the same number of decimal places if you are tracking totals.