QUICK CONVERSION
US miles per gallon to UK miles per gallon
Enter a value to convert us miles per gallon to uk miles per gallon, or use the right-hand input to convert in reverse.
How to convert us miles per gallon to uk miles per gallon
Fuel economy is a reciprocal conversion, not a simple multiplication. UK and US gallons have different volumes, so their miles-per-gallon figures are not interchangeable.
For example, 1 US mpg corresponds to 1.2009499255 UK mpg. Zero mpg or km/L cannot be converted to finite L/100 km; zero L/100 km corresponds to infinite mpg or km/L.
Common conversion values
| US miles per gallon (US mpg) | UK miles per gallon (UK mpg) |
|---|---|
| 1 | 1.2009499255 |
| 2 | 2.40189985101 |
| 5 | 6.00474962752 |
| 10 | 12.009499255 |
| 20 | 24.0189985101 |
| 25 | 30.0237481376 |
| 30 | 36.0284977651 |
| 40 | 48.0379970202 |
| 50 | 60.0474962752 |
| 60 | 72.0569955303 |
| 80 | 96.0759940404 |
Important measurement notes
A higher miles-per-gallon number indicates better economy, whereas a lower L/100 km number indicates lower fuel consumption.
Related conversions
Figures are rounded for display. For regulated or safety-critical work, confirm the relevant measurement standard and precision.