In America we say the fuel economy of car as miles/gallon (miles per gallon). I know in some countries people use Liter/100 km (liter per 100 km). Some countries use km/Liter (km per liter).

My question is: which format French people use?

L/100 km or km/L?

  • I just looked on the French web sites of Toyota, Honda, and Citroën, and they all use L/100km. Except for the electric models which use €/100km. Mar 20 '16 at 19:41
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    I'm voting to close this question as off-topic because this is not about the French language.
    – Kareen
    Mar 20 '16 at 20:07
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    This is not a language question. If you speak French and you live in the US, you will talk about miles/gallon, even though you'd talk about liters/100 km in France, because that's the unit used, not because you speak French or English.
    – Kareen
    Mar 20 '16 at 20:09
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    IMO, this question is not asking whether French people use gallons or liters when discussing fuel economy/consumption, but rather which format is used (i.e., does one mention first the distance traveled or does one mention first the amount of fuel consumed?) (Also, I interpret “French people use” to mean “used in France”) Therefore, I don’t see this question being any more off-topic/worthy of closure than this {+6} one about date/time formatting, which doesn’t even specify that it's limited to “French people” or “in France.” (regardless, +1)
    – Papa Poule
    Mar 21 '16 at 13:34
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    @Kareen: I agree with Papa Poule, I think this is the kind of question we can answer, since it is easy to answer, and difficult to know for strangers... (you can't find this kind of stuff in a dictionnary...)
    – Random
    Mar 21 '16 at 14:43

The unit mostly used is liters per 100kms (Consommation de carburant par les voitures). In day-to-day life, it's pronounced “litres aux cent” (short for “litres aux cent kilomètres”).

  • 1
    I would say exclusively instead of mostly, at least in France.
    – jlliagre
    Mar 20 '16 at 21:03
  • Interesting. Thanks.
    – Tony
    Mar 20 '16 at 21:52

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