How is vehicle fuel efficiency expressed outside the United States?

I've been wondering this for a long time and Google doesn't seem to want to give me the answer.

In the United States, the term "miles per gallon" is most commonly used to express the fuel efficiency of an automobile. Given that "mile" and "gallon" are artifacts of the U.S. customary system of measurement, how would someone in a country that uses the Metric system go about expressing this rate? "Kilometers per liter"? "Meters per U.K. gallon"? "Furlongs per hogshead"?

Solution 1:

The standard measure is in litres per hundred kilometres.

Solution 2:

Its kilometers per liter. Like 40km average that means in a liter vehicle has ability to run 40 km. (Indian measurement)

Solution 3:

From Wikipedia's page on fuel efficiency:

In the context of transport, fuel economy is the energy efficiency of a particular vehicle, and is given as a ratio of distance travelled per unit of fuel consumed. Fuel economy is expressed in miles per gallon (mpg) in the USA and usually also in the UK—there is sometimes confusion as the imperial gallon is 20% larger then the US gallon so that mpg values are not directly comparable. In countries using the metric system fuel economy is stated in kilometres per litre (km/L) in the Netherlands, Denmark and in several Latin American or Asian countries such as India, Japan, South Korea1, or as the reciprocal ratio, "fuel consumption" in liters per 100 kilometers (L/100 km) in much of Europe, Canada, New Zealand and Australia. Litres per mil are used in Norway and Sweden.

Solution 4:

Here in Germany, it's measured in how many litres of fuel you need to drive 100km (presumably in a particular fashion and with a particular load).

I know that Volkswagen were very proud about 10 years ago when they claimed that the production version of the VW Lupo was the first "3L car" – i.e., used 3L (or less) to go 100 km.

Solution 5:

In my country of Iran, it is expressed in L/100km. However, colloquially, people just say the number without the L/100km part. For instance, you would hear people saying something like: "This car burns 5 on highway and 8 in city."