Convert Miles per US Gallon to Miles per Imperial Gallon
1 mile per us gallon = 1.2009499 miles per imperial gallon. Multiply the number of miles per us gallon by 1.20094992547.
1 MPG (US) = 1.200949925 MPG (UK)
Multiply the number of miles per us gallon by 1.20094992547.
Results are rounded for display. Double-check values for critical work.
Popular fuel economy conversions
Miles per US Gallon to Miles per Imperial Gallon table
| Miles per US Gallon | Miles per Imperial Gallon |
|---|---|
| 1 MPG (US) | 1.2009499 MPG (UK) |
| 2 MPG (US) | 2.4018999 MPG (UK) |
| 3 MPG (US) | 3.6028498 MPG (UK) |
| 4 MPG (US) | 4.8037997 MPG (UK) |
| 5 MPG (US) | 6.0047496 MPG (UK) |
| 10 MPG (US) | 12.009499 MPG (UK) |
| 20 MPG (US) | 24.018999 MPG (UK) |
| 25 MPG (US) | 30.023748 MPG (UK) |
| 50 MPG (US) | 60.047496 MPG (UK) |
| 100 MPG (US) | 120.09499 MPG (UK) |
| 500 MPG (US) | 600.47496 MPG (UK) |
| 1000 MPG (US) | 1,200.9499 MPG (UK) |
Miles per US Gallon to Miles per Imperial Gallon in your head
Multiply by 6, then divide by 5.
That lands within 0.1% of the exact value.
10 MPG (US) → 12 MPG (UK) in your head, 12.0095 MPG (UK) exactly.
About these units
The mile per us gallon (MPG (US)) is a US customary unit of fuel economy, equal to 0.42514371 kilometers per liter.
The mile per imperial gallon (MPG (UK)) is an imperial unit of fuel economy, equal to 0.35400619 kilometers per liter.
Going the other way, 1 mile per imperial gallon = 0.83267418 miles per us gallon. Fuel economy is the classic inverted conversion: more miles per gallon is better, but fewer litres per 100 km is better. Because the relationship is reciprocal, the graph is a curve, not a straight line. Note that a US gallon is smaller than an imperial gallon, so US MPG figures always look worse than UK ones for the same car.
Frequently asked
- How many miles per imperial gallon are in a mile per us gallon?
- 1 mile per us gallon = 1.2009499 miles per imperial gallon.
- How do you convert miles per us gallon to miles per imperial gallon?
- Multiply the number of miles per us gallon by 1.20094992547.
- What is 10 MPG (US) in MPG (UK)?
- 10 MPG (US) = 12.009499 MPG (UK).