mpg to km/L
Convert US miles per gallon to km/L and back when reading car reviews from abroad.
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Common values
Formula
km/L = mpg × 0.4251437075
Uses US gallons: 30 mpg is about 12.8 km/L. UK mpg figures run roughly 20% higher, so check the source.
Frequently asked questions
Q. How many km/L is 1 mpg?
1 mpg is 0.43 km/L, and 10 mpg is 4.25 km/L. Type any value in the box above to convert instantly.
Q. And how many mpg is 1 km/L?
1 km/L is 2.35 mpg. This converter works both ways, so typing in the right box updates the left one.
Q. Where is this unit used?
Uses US gallons: 30 mpg is about 12.8 km/L. UK mpg figures run roughly 20% higher, so check the source.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.