Convert MPG to Litres/100 km

This is a handy tool for converting car fuel consumption.
Convert Miles Per Gallon (MPG) to Litres per 100 Kilometres (km) and vice versa.

1 Imperial Gallon (UK) = 4.54609188 litres
1 mile = 1.609344 kilometres

Miles per Gallon  →  Litres per 100 kms


Litres per 100 kms  →  Miles per Gallon


What is an Imperial Gallon?

Imperial gallon is a unit used in the United Kingdom, equal to 10 pounds of water at 62°F. It is an equivalent of 1.25 US liquid gallon used in the United States.

How can this converter be useful?

Many countries, including Continental Europe, do not use MPG to measure car fuel consumption. Instead, they use Litres per 100 kilometres.

You might find our converter useful if you drive in Continental Europe. If you want to hire a car and need to budget your holiday, you will need to know how much you'll need to reserve for petrol. Most car rental companies in France, Germany, Italy, Spain, etc. do not provide the fuel consumption data in MPG but in Litres per 100 km.

Alternativelly, if you're coming from a country where Litres/100 kms are used (e.g. you have just moved to the United Kingdom and are looking for a car), our converter will give you a better idea of fuel economy of your chosen car.

Link to this page

Whether you administer a website of a car rental company, or just a hobby site, you are welcome to link to this calculator using the following link: MPG - Litre/100 km Converter. Thank you!