Miles per Gallon (US) to Kilometers per Liter Converter
One Miles per Gallon (US) equals 0.425143708 Kilometers per Liter (1 mpg-us = 0.425143708 km-l). Multiply a Miles per Gallon (US) value by 0.425143708 to get the equivalent in Kilometers per Liter. Use the calculator above for your value, or check the examples and reference table below.
Formula
km/L = mpg × 0.425143708
Multiply the positive Miles per Gallon (US) value by 0.425143708 to get Kilometers per Liter. Both units measure fuel economy in the same direction.
Example Conversions
1 Miles per Gallon (US) (mpg-us)
0.425143708 Kilometers per Liter (km-l)
5 Miles per Gallon (US) (mpg-us)
2.12571854 Kilometers per Liter (km-l)
10 Miles per Gallon (US) (mpg-us)
4.25143708 Kilometers per Liter (km-l)
25 Miles per Gallon (US) (mpg-us)
10.6285927 Kilometers per Liter (km-l)
100 Miles per Gallon (US) (mpg-us)
42.5143708 Kilometers per Liter (km-l)
Conversion Table
| Miles per Gallon (US) (mpg-us) | Kilometers per Liter (km-l) |
|---|---|
| 0.1 | 0.0425143708 |
| 0.5 | 0.212571854 |
| 1 | 0.425143708 |
| 2 | 0.8502874161 |
| 5 | 2.12571854 |
| 10 | 4.25143708 |
| 25 | 10.6285927 |
| 50 | 21.2571854 |
| 100 | 42.5143708 |
| 250 | 106.285927 |
| 500 | 212.571854 |
| 1000 | 425.143708 |
How to Convert Manually
Use these steps to convert Miles per Gallon (US) values to Kilometers per Liter without the calculator.
- Write down the value in Miles per Gallon (US) (mpg-us) that you want to convert.
- Apply the formula: km/L = mpg × 0.425143708.
- For example, converting 10 Miles per Gallon (US) gives 4.25143708 Kilometers per Liter.
- Label the result as Kilometers per Liter (km-l).
About Miles per Gallon (US) and Kilometers per Liter
Miles per US gallon measures distance per fuel. Higher is better. It is the EPA window-sticker figure on every new car sold in the United States. Kilometers per liter measures distance per unit fuel in metric terms. Higher is better. Japan, India, and much of Asia and Latin America quote car economy in km/L. One Miles per Gallon (US) equals 0.425143708 Kilometers per Liter (1 mpg-us = 0.425143708 km-l). Miles per Gallon (US) is used in US car shopping and EPA ratings and in US road trip fuel planning. Kilometers per Liter is used in car economy in Japan, India, and Asia.
Precision and Rounding:Fuel economy units are reciprocal of each other: consumption (L/100 km) falls as efficiency (mpg, km/L) rises, so conversions are formula-based, not simple factors, and small mpg differences matter more at low values than high ones. One decimal place is standard for window stickers and trip computers.
Fuel-economy results use exact volume and distance definitions with the reciprocal formulas shown on each page (reference).
Worked Example
15Miles per Gallon (US) equals6.37715562Kilometers per Liter.
15 mpg-us -> 6.37715562 km-l
FAQ
How do I convert Miles per Gallon (US) to Kilometers per Liter?
Multiply the positive Miles per Gallon (US) value by 0.425143708 to get Kilometers per Liter. Both units measure fuel economy in the same direction.
What is the formula for Miles per Gallon (US) to Kilometers per Liter?
The formula is km/L = mpg × 0.425143708.
How many Kilometers per Liter are in 1 Miles per Gallon (US)?
1 Miles per Gallon (US) equals 0.425143708 Kilometers per Liter.
Can I convert Kilometers per Liter back to Miles per Gallon (US)?
Yes. 1 Kilometers per Liter equals 2.35214583 Miles per Gallon (US), and the related converter can reverse the calculation.
What are common names for Miles per Gallon (US) and Kilometers per Liter?
Miles per Gallon (US) is shown as mpg-us and may also be searched as mpg, mpg US, miles per gallon. Kilometers per Liter is shown as km-l and may also be searched as km/L, km/l, kilometres per litre.
Was this page helpful?
Let us know if this converter met your needs.