Unit Converter › Fuel economy › UK mpg → US mpg
Fuel economy · inverse · base litres per 100 km
UK mpg to US mpg
1 miles/gallon (UK) = 0.832674181742 US mpg. US mpg and UK mpg are reciprocals — the conversion divides rather than multiplies, so a bigger number in one means a smaller number in the other.
Convert
inverse · base litres per 100 km
—
| Every unit at once | Value | Unit |
|---|
UK mpg to US mpg table
| miles/gallon (UK) | US mpg | Unit |
|---|---|---|
| 1 UK mpg | 0.832674181742 | US mpg |
| 2 UK mpg | 1.66534836348 | US mpg |
| 3 UK mpg | 2.49802254522 | US mpg |
| 5 UK mpg | 4.16337090871 | US mpg |
| 10 UK mpg | 8.32674181742 | US mpg |
| 20 UK mpg | 16.6534836348 | US mpg |
| 25 UK mpg | 20.8168545435 | US mpg |
| 50 UK mpg | 41.6337090871 | US mpg |
| 100 UK mpg | 83.2674181742 | US mpg |
| 500 UK mpg | 416.337090871 | US mpg |
| 1,000 UK mpg | 832.674181742 | US mpg |
the only category that runs backwards
More litres per 100 km is worse; more miles per gallon is better. The two are reciprocals, not a scale factor, so you cannot average mpg figures the way you average L/100 km. US and UK mpg differ because the gallons do.