4.50 L/100km to MPG (US)
52.3 mpg
4.50 L/100km = 52.3 mpg.
MPG (US)
52.3mpg
4.5 L/100km = 52.3 mpg
The short answer
How many MPG (US) is 4.50 L/100km?
4.50 L/100km = 52.3 mpg. MPG (US) = 235.214583 ÷ L/100km, so the working is 235.214583 ÷ 4.50 = 52.3.
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 ÷ 4.50 = 52.3
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 | 52 | −0.26991 |
| 1 decimal | 52.3 | +0.03009 |
| 2 decimals | 52.27 | +0.00009 |
Round trip: take 52.3 mpg back the other way and you land on 4.4974 L/100km — a drift of 0.0026 L/100km. That gap is the rounding, not the conversion.
What 4.50 L/100km looks like
4.50 L/100km
The standard 2024 Toyota Prius, EPA rated at 54 mpg combined, works out at about 4.4 litres per 100 kilometres.
Frequently asked questions
What is 4.50 L/100km in MPG (US)?
4.50 L/100km is 52.3 MPG (US). MPG (US) = 235.214583 ÷ L/100km, so the working is 235.214583 ÷ 4.50 = 52.3.
How accurate is 52.3 mpg?
Rounding to 52.3 mpg and converting straight back gives 4.4974 L/100km, a drift of 0.0026 L/100km from the 4.50 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 →