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.
Miles/gallon (UK)
Definition: Miles per gallon (Imperial) measures how many miles a vehicle travels on one Imperial gallon, which is exactly 4.54609 liters.
History/origin: The Imperial gallon was defined in 1824. Although the UK has largely switched to liters for selling fuel, the MPG unit remains ingrained in British automotive culture.
Current use: MPG (UK) is used throughout the United Kingdom and sometimes in Canada to discuss car fuel efficiency in marketing and magazines.
Miles/gallon (US) to Miles/gallon (UK) Conversion Table
| Miles/gallon (US) [mpg_us] | Miles/gallon (UK) [mpg_uk] |
|---|---|
| 0.01 mpg_us | 0.0120095 mpg_uk |
| 0.1 mpg_us | 0.12009499 mpg_uk |
| 1 mpg_us | 1.20094987 mpg_uk |
| 2 mpg_us | 2.40189974 mpg_uk |
| 3 mpg_us | 3.60284961 mpg_uk |
| 5 mpg_us | 6.00474935 mpg_uk |
| 10 mpg_us | 12.0094987 mpg_uk |
| 20 mpg_us | 24.01899741 mpg_uk |
| 50 mpg_us | 60.04749352 mpg_uk |
| 100 mpg_us | 120.09498704 mpg_uk |
| 1000 mpg_us | 1200.94987037 mpg_uk |
How to Convert Miles/gallon (US) to Miles/gallon (UK)
1 mpg_us = 1.20094987 mpg_uk
1 mpg_uk = 0.83267422 mpg_us
Example: convert 15 mpg_us to mpg_uk:
15 mpg_us = 15 × 1.20094987 mpg_uk = 18.01424806 mpg_uk
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.
- In the UK, even though fuel is sold in Liters, vehicle fuel economy is still traditionally discussed in Miles per Imperial Gallon (MPG).