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By / August 11, 2025

Liter to Gallon Converter (L to gal)

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What is Liter?

A liter (L) is a metric unit of volume that is commonly used to measure liquids and other substances. One liter is equal to 1,000 milliliters (mL) or 1 cubic decimeter (dm³).

It is defined as the volume of a cube with each side measuring 10 centimeters (10 cm), which is 1,000 cubic centimeters (cm³). The liter is widely used in everyday measurements, scientific applications, and for calculating liquid quantities.

History/Origin

From 1901-1964, a liter was defined by the volume of 1 kg of pure water at maximum density under atmospheric pressure, but variations in temperature, purity, and isotopic factors complicated accuracy.

To avoid precision issues, it reverted to 1 dm³

Facts

  • One liter of water weighs approximately 1 kg at its densest point (4°C).
  • The liter is commonly abbreviated as “L” in most languages, though some still use lowercase “l.”
  • It’s an easy-to-use volume measure in everyday contexts
  • A liter (L) is a unit of volume commonly used globally, compatible with the SI system, though not an official SI unit.
  • Equal to: 1 dm³, 1,000 cm³, or 1/1,000 m³.

Current Use

  • Used widely for liquid volumes (e.g., beverages, water bottles) and non-liquid capacities (e.g., car trunks, backpacks, microwaves).
  • Fuel quantities and prices are often listed in liters in most countries outside the U.S.

What is Gallon?

A gallon is a volume unit used for measuring liquids and other things. There are two main types of gallons: the US gallon, which is equivalent to 3.78541 liters, and the Imperial gallon, which is equivalent to 4.54609 liters.

People in the US usually use the US gallon for liquids like gasoline and drinks. People in the UK and some countries of the Commonwealth use the Imperial gallon. The gallon is widely used for larger liquid quantities in both systems

Fact

  • A gallon is a unit of volume for liquid capacity in the US customary and imperial systems of measurement.
  • A US gallon is equal to 231 cubic inches, which is about 3.785 liters.
  • The imperial gallon (used in the UK, Canada, and some Caribbean nations) is defined as 4.54609 liters.
  • Both systems divide the gallon into four quarts, with each quart further divided into pints and cups, creating relationships like: 1 gallon = 4 quarts = 8 pints = 16 cups = 32 gills.
  • A US gill is divided into four fluid ounces, whereas an imperial gill is divided into five fluid ounces.
  • A US fluid ounce is 1/128 of a US gallon; an imperial fluid ounce is 1/160 of an imperial gallon.

History/Origin

  • The word “gallon” comes from the Old Northern French word “galon“.
  • The system developed in England for measuring wine and beer, with variations like the wine gallon, ale gallon, and imperial gallon.

Current Use

  • Gallons are commonly used for bigger containers in the United States. For example, a half-gallon tub of ice cream or a one-gallon milk carton are the same size.
  • Gallons are also widely used in the US for expressing fuel economy.
  • The imperial gallon is used less frequently, as most countries use liters for fuel-related measurement

Liter to Gallon (US) Conversion Table

Liter [L] Gallon (US) [gal (US)]
0.01 L 0.0026417205 gal (US)
0.05 L 0.0132086026 gal (US)
0.10 L 0.0264172052 gal (US)
0.50 L 0.1320860262 gal (US)
1 L 0.2641720524 gal (US)
1.5 L 0.3962580786 gal (US)
3 L 0.7925161571 gal (US)
5 L 1.3208602618 gal (US)
7 L, l 1.8488043659 gal (US)
10 L 2.6417205236 gal (US)
15 L 3.9625857854 gal (US)
20 L 5.2834410472 gal (US)
25 L 6.6042963090 gal (US)
50 L 13.2086026179 gal (US)
75 L 19.8129039268 gal (US)
100 L 26.4172052358 gal (US)
150 L 39.6258528537 gal (US)
250 L 66.0428814230 gal (US)
350 L 92.8564339911 gal (US)
600 L 158.5032329063 gal (US)
750 L 198.1290411329 gal (US)
900 L 237.7548493595 gal (US)
1000 264.1720523581 gal (US)

How to Convert Liter to Gallon (US)?

Conversion Formula:

This formula lets you convert liters into gallons by multiplying the number of liters by 0.264172.

Example Calculations:

  1. Example 1:

    10 liters×0.264172

  2. Example 2:

    25 liters×0.264172=

  3. Example 3:

    50 liters×0.264172=

1 liter = 0.264172 gallons (US)

Gallons = Liters x 0.264172

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