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Last updated date: 09th Apr 2024
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Introduction to Litre

Volume is the amount of 3D space something takes up. The two most common measurements of volume in terms of liquid are Litres and Millilitres. Thus, a litre is a unit of measuring volume under the metric system. litres are commonly written as L (in short), so "5 L" indicates "5 litres" (you can also use lowercase l). In addition, a litre is just a clump of millilitres that is put all together. In fact, one litre

Makes up 1000 millilitres i.e.: 1 litre = 1,000 millilitres.

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Examples of Litres

Milk, cold drinks, juices, soda and other drinks and carbonated drinks are often sold in litres. This is to say, the jug contains exactly 2 litres of water in it.

Let’s check out the capacity that each metric unit holds. Below is the summation in a tabular form.

Metric Units and Fluid Volume Used in Measuring Volume

Metric Units

Capacity Or Fluid Volume

1 litre

1000 millilitre

10 millilitre

1 centilitre

10 centilitres

1 decilitre

10 decilitres

1 litre

1000 litres

1 kilolitre

1,000,000 litres

1 megalitre

1,000,000,000 litres

1 gigalitre

500 mL

half a litre

Measuring volume units are also expressed in short forms such as below:

Abbreviations Used in Measuring Volume

Metric Units



L , l









 One Litre

Litres are often used for commodities or components (like the fluids and solids which can be poured) and are measured by the size or capacity of their container. On the other hand, cubic meters (and derived units) are commonly used for items measured either by their dimensions or their displacements. The litre is also used in some measurements, like the density (kg/L), enabling easy comparison with the density of water.

One Litre of Water

1 litre of water contains a mass of almost one kilogram since the kilogram was originally described as the mass of one cubic decimetre of water (10 cm × 10 cm × 10 cm) at the temperature of melting ice (0 °C) in 1795. Followed up redefinitions of the metre and kilogram indicated that this relationship is no longer exact.

Solved Examples


Alex bought a bottle of hand sanitiser. The bottle contains 4000 ml of liquid content.

Find out the volume of litres of the liquid does the sanitiser bottle contain?


4000mL = 4000/1,000

=4 L

Therefore, the sanitiser bottle contains 4L


Mr. Brown purchased 5 cans of pineapple juice of 1 L each. He drank 2500 mL of juice. Calculate the mL of juice still remaining in the cans?


1 can=1 

L5 cans=5

L= 5×2,500=12,500

mL=12,500 mL−2,500 mL =10,000

∴ 10,000 mL of juice is remaining.


The volume of a kitchen pantry trash bin in a school is 70 litres. Find out the gallons of trash that the trash bin in the kitchen can hold?


To find out: The volume of the trash bin in gallons.

Given: The given volume of the kitchen trash bin = 70 litres.

Applying the formula of litres to gallons,

gallons = 0.264172 * litres

gallons = 0.264172 * 70 = 18.49204

Hence, the volume of the given kitchen trash bin it can hold = 2.64172 gallons. 

Fun Facts

  • Litre was once used as a base unit under the original French metric system

  • The term litre is extracted from a traditional French unit, the ‘litron’, whose name appeared from Byzantine Greek—where it was regarded as a unit of weight, not volume and equivalent to approximately 0.831 litres.

  • The litre is accepted for use with the SI, not an SI unit—the SI unit of volume is the cubic metre (m3).

  • The spelling "litre" is primarily used in American English.

  • A litre is represented with an abbreviation L or l is measured as L3 which is used to measure liquids.

  • A litre is a bit more than a quart in the measurement

FAQs on Litre

Q1. What is a Millilitre?

Answer: In a metric system, a millilitre is a very small amount of liquid measurement of volume. The term millilitre essentially refers to one thousandth ("milli") of a litre. A millilitre of milk in a teaspoon only fills the bottom of the teaspoon!

Q2. What is the Litres to Gallons Formula?

Answer: Before plunging into the litres to gallons formula, let us know that "litres" and "gallons" are the units of volume which are used to measure liquids. In the metric system, "litre" is the SI unit of volume.

1 litre = 1000 millilitres (or) 1000 cubic centimeters

1 gallon = 4 quarts (or) 8 pints (or) 16 cups

"Gallon" is a customary unit of volume in the United States and it can also be abbreviated as a gal.

Having said that, the conversion formula with respect to gallons and litres is:

1 litre = 0.264172 gallons

Considering this, the litres to gallons formula is:

Gallons = 0.264172 * litres i.e., we just need to multiply the litres by 0.264172 in order to convert them into litres.

Q3. How Do We Use the Litres to Gallons Calculator?

Answer: You can follow the below-stated steps to use the calculator and to convert the volume from litres to gallons.

Step 1: Enter the value of litres in the given input box.

Step 2: Click on the button "Convert" in order to convert the value to gallons.

Step 3: Click on the button "Reset" to clear all the fields

Step 4: Enter a new value.

You will find the litre conversion calculator for free here.