Liters (L) to Gallons (gal) Conversion Calculator

liters to gallons - L to gal conversion calculator

L to Gal Conversion Calculator

Click on the following link if you want to convert gallons to liters – gal to L

History

The liter (L) was introduced in France at the end of the 18th century as part of the new metric system. It was designed to be universal and simple to use, based on powers of ten.
The gallon (gal), however, is much older and originated in England, where it was used to measure wine, ale, and grain. Over time, two different gallon systems developed:

  • The U.S. gallon (used in the United States)
  • The Imperial gallon (used in the United Kingdom and some Commonwealth countries)

These two gallons are not the same size:

  • 1 U.S. gallon = 3.785 liters
  • 1 Imperial gallon = 4.546 liters

Common Usage

  • Liters (L) are used almost everywhere in the world for drinks, water, and car fuel.
  • Gallons (gal) are mainly used in the U.S. and U.K. for gasoline, milk, and large liquid containers.

For example, a car’s fuel tank of 50 liters equals 13.2 U.S. gallons or 11 Imperial gallons.

Liters to Gallons Conversion Formula

Depending on which gallon you’re converting to:

U.S. gallons = L ÷ 3.785
Imperial gallons = L ÷ 4.546

Example:

Convert 10 liters to both gallon types.

U.S.: 10 ÷ 3.785 = 2.64 gal
Imperial: 10 ÷ 4.546 = 2.20 gal

Conversion Table

Liters (L)U.S. Gallons (gal)Imperial Gallons (gal)
1 L0.26 gal0.22 gal
5 L1.32 gal1.10 gal
10 L2.64 gal2.20 gal
20 L5.28 gal4.40 gal
30 L7.93 gal6.60 gal
40 L10.57 gal8.80 gal
50 L13.21 gal11.00 gal
60 L15.85 gal13.20 gal
100 L26.42 gal22.00 gal
200 L52.83 gal44.00 gal

Interesting Facts

  1. A U.S. gallon is about 16 cups or 8 pints.
  2. A British (Imperial) gallon is about 20% larger than a U.S. gallon.
  3. A standard car fuel tank in Europe holds around 50 liters, which is about 13 U.S. gallons.

Frequently Asked Questions

1. How many liters are in one U.S. gallon?
3.785 liters.

2. How many liters are in one Imperial gallon?
4.546 liters.

3. How can I quickly convert liters to U.S. gallons?
Divide by 3.8 for an easy mental estimate.

4. Why are there two types of gallons?
They evolved separately in England and the U.S. based on different standards for wine and ale.

5. Which gallon is bigger?
The Imperial gallon is larger than the U.S. gallon.

Quiz

Try to solve this short 5-question quiz:

A car has a 50 L fuel tank. How many U.S. gallons is that?

A water container holds 20 L. How many Imperial gallons is that?

You fill your car with 10 L of fuel. How many U.S. gallons is that?

A washing machine uses 40 L per load. How many Imperial gallons is that?

A 2 L milk bottle equals how many U.S. gallons?

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