How to convert miles per gallon (US) to miles per gallon (UK)
- Take the value in miles per gallon (US).
- Use the formula miles per gallon (UK) = miles per gallon (US) × 1.200949926.
- For example, 22 mpg is 26.42 mpg (UK).
About miles per gallon and miles per gallon
A US gallon is 3.785 liters and a UK gallon is 4.546 liters, so the same car covers about 20% more miles per UK gallon. Multiply US mpg by 1.20095 to get UK mpg. Adding a fifth is almost exact: 30 US mpg becomes 36 UK mpg against the exact 36.03.
US reviews, EPA window stickers and American owners quote miles per US gallon. UK readers used to imperial figures need to convert them, or a US car will look thirstier than it is. The two test regimes differ too, so treat converted figures as a guide.
Examples
- 22 mpg (a full-size pickup, an illustrative figure) is 26.42 mpg (UK)
- 28 mpg (a mid-size SUV, an illustrative figure) is 33.63 mpg (UK)
- 35 mpg (a compact sedan, an illustrative figure) is 42.03 mpg (UK)
- 52 mpg (a hybrid hatchback, an illustrative figure) is 62.45 mpg (UK)
Miles per gallon to miles per gallon chart
| Miles per gallon (US, mpg) | Miles per gallon (UK, mpg) |
|---|---|
| 10 | 12.01 |
| 15 | 18.01 |
| 18 | 21.62 |
| 20 | 24.02 |
| 22 | 26.42 |
| 25 | 30.02 |
| 28 | 33.63 |
| 30 | 36.03 |
| 32 | 38.43 |
| Miles per gallon (US, mpg) | Miles per gallon (UK, mpg) |
|---|---|
| 35 | 42.03 |
| 40 | 48.04 |
| 45 | 54.04 |
| 50 | 60.05 |
| 55 | 66.05 |
| 60 | 72.06 |
| 70 | 84.07 |
| 80 | 96.08 |
| 100 | 120.09 |