12 L/100km to MPG (US)
19.6 mpg
12 L/100km = 19.6 mpg.
MPG (US)
19.6mpg
12 L/100km = 19.6 mpg
The short answer
How many MPG (US) is 12 L/100km?
12 L/100km = 19.6 mpg. MPG (US) = 235.214583 ÷ L/100km, so the working is 235.214583 ÷ 12 = 19.6.
The working
L/100km and MPG (US) are reciprocals of each other, so the conversion is a division rather than a multiplication — which is why the two scales never line up evenly.
MPG (US) = 235.214583 ÷ L/100km 235.214583 ÷ 12 = 19.6
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (mpg) | Off by |
|---|---|---|
| Whole number | 20 | +0.39878 |
| 1 decimal | 19.6 | −0.00122 |
| 2 decimals | 19.60 | −0.00122 |
Round trip: take 19.6 mpg back the other way and you land on 12.0007 L/100km — a drift of 0.0007 L/100km. That gap is the rounding, not the conversion.
What 12 L/100km looks like
12 L/100km
The 1980 US CAFE target of 20.0 mpg for passenger cars is a shade under 11.8 litres per 100 kilometres.
Frequently asked questions
What is 12 L/100km in MPG (US)?
12 L/100km is 19.6 MPG (US). MPG (US) = 235.214583 ÷ L/100km, so the working is 235.214583 ÷ 12 = 19.6.
How accurate is 19.6 mpg?
Rounding to 19.6 mpg and converting straight back gives 12.0007 L/100km, a drift of 0.0007 L/100km from the 12 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
L/100km to MPG Converter
Convert L/100km to US MPG — turn a European economy figure into miles per gallon.
Open the l/100km to mpg converter →