Convert mpg to km/L
miles per US gallon to kilometers per liter. Enter a value to convert, or use the mpg to km/L chart further down the page.
1 mile per US gallon equals 0.425144 kilometers per liter. Going the other way, 1 kilometer per liter = 2.35215 miles per US gallon.
Note. L/100km is an inverse measure — a lower number means better economy — so converting to or from it uses a reciprocal, not a multiplication.
How to convert mpg to km/L
To convert miles per US gallon to kilometers per liter, multiply the mile per US gallon value by 0.4251437074. You can also divide by 2.352145833 to get the same answer.
km/L = MPG (US) × 0.4251437074
Worked example
Convert 30 MPG (US) to kilometers per liter:
30 MPG (US) = 12.7543 km/L
mpg to km/L conversion chart
Use this mpg to km/L table for quick reference without typing anything.
| miles per US gallon (MPG (US)) | kilometers per liter (km/L) |
|---|---|
| 5 MPG (US) | 2.12572 km/L |
| 10 MPG (US) | 4.25144 km/L |
| 15 MPG (US) | 6.37716 km/L |
| 20 MPG (US) | 8.50287 km/L |
| 25 MPG (US) | 10.6286 km/L |
| 30 MPG (US) | 12.7543 km/L |
| 35 MPG (US) | 14.88 km/L |
| 40 MPG (US) | 17.0057 km/L |
| 50 MPG (US) | 21.2572 km/L |
| 60 MPG (US) | 25.5086 km/L |
What is a mile per US gallon?
Miles per US gallon is the fuel economy figure used on American window stickers. A US gallon is smaller than an imperial gallon, so US MPG figures are about 17% lower than UK MPG for the same car.
What is a kilometer per liter?
Kilometers per liter is the fuel economy unit used in much of Asia, Africa and South America. Higher is better.
Frequently asked questions
How many km/L are in a mile per US gallon?
1 mpg equals 0.425144 km/L. Going the other way, 1 km/L is 2.35215 mpg.
How do you convert mpg to km/L?
To convert miles per US gallon to kilometers per liter, multiply the mile per US gallon value by 0.4251437074. You can also divide by 2.352145833 to get the same answer.
What is 10 mpg in km/L?
10 mpg equals 4.25144 km/L. The conversion chart on this page lists the other values people look up most often.
Related fuel economy conversions
Convert mpg to other units
Convert other units to km/L
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