Mileage Converter
Miles/gallon (US)
Definition: Miles per gallon (MPG) is a measure of how many miles a vehicle can travel on one US liquid gallon of fuel (approximately 3.785 liters).
History/origin: MPG became a standard metric in the United States following the introduction of fuel economy standards (CAFE) in 1975 to encourage manufacturers to build more efficient cars.
Current use: It is the official standard for fuel economy ratings in the United States and is used by the EPA on all new vehicle stickers.
Kilometers/liter (km/l)
Definition: Kilometers per liter (km/L) is a unit of fuel economy that measures how many kilometers a vehicle can travel on one liter of fuel.
History/origin: This unit was developed as part of the worldwide shift to the metric system. It provides a direct, linear way to understand a vehicle's efficiency.
Current use: km/L is the primary fuel efficiency unit in many regions, including Latin America, much of Asia (like India and Bangladesh), and parts of Africa.
Miles/gallon (US) to Kilometers/liter (km/l) Conversion Table
| Miles/gallon (US) [mpg_us] | Kilometers/liter (km/l) [kpl] |
|---|---|
| 0.01 mpg_us | 0.00425144 kpl |
| 0.1 mpg_us | 0.04251437 kpl |
| 1 mpg_us | 0.4251437 kpl |
| 2 mpg_us | 0.8502874 kpl |
| 3 mpg_us | 1.2754311 kpl |
| 5 mpg_us | 2.1257185 kpl |
| 10 mpg_us | 4.251437 kpl |
| 20 mpg_us | 8.502874 kpl |
| 50 mpg_us | 21.257185 kpl |
| 100 mpg_us | 42.51437 kpl |
| 1000 mpg_us | 425.1437 kpl |
How to Convert Miles/gallon (US) to Kilometers/liter (km/l)
1 mpg_us = 0.4251437 kpl
1 kpl = 2.35214587 mpg_us
Example: convert 15 mpg_us to kpl:
15 mpg_us = 15 × 0.4251437 kpl = 6.3771555 kpl
Did You Know?
- Gallon Confusion: A US Gallon is smaller than a UK Gallon! That is why a car rated at 30 MPG in the USA would actually be rated at about 36 MPG in the United Kingdom.
- Did you know? Kilometers per liter (km/L) is the standard for measuring fuel economy in most metric-using countries, including India, Brazil, and parts of Europe.