Convert mile per us gallons to mile per imperial gallons
1 mpg (US) = 1.2009499255 mpg (imp) — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 9 fuel economy units
- Kilometer per liters km/L 0.425 143 707 43
- Liter per 100 kms L/100 km 235.214 583 333
- Liter per kilometers L/km 2.352 145 833 33
- Mile per US gallons mpg (US) 1
- Mile per imperial gallons mpg (imp) 1.200 949 925 5
- Mile per liters mi/L 0.264 172 052 358
- US gallon per 100 miless gal/100 mi 100
- Meter per cubic meters m/m³ 425 143.707 43
- Kilometer per US gallons km/gal 1.609 344
Every row is Mile per US gallon (mpg (US)) converted through the kilometer per liter, in exact rational arithmetic.
How to convert mile per us gallons to mile per imperial gallons
Multiply the number of mile per us gallons by 1.2009499255 to get mile per imperial gallons.
Mile per US gallon: The US EPA figure.
Mile per imperial gallon: UK figures use the larger imperial gallon, so they look about 20% better than US ones for the same car.
Mile per US gallon to Mile per imperial gallon conversion table
| Mile per US gallons (mpg (US)) | Mile per imperial gallons (mpg (imp)) |
|---|---|
| 1 mpg (US) | 1.200 949 9 |
| 2 mpg (US) | 2.401 899 9 |
| 3 mpg (US) | 3.602 849 8 |
| 4 mpg (US) | 4.803 799 7 |
| 5 mpg (US) | 6.004 749 6 |
| 10 mpg (US) | 12.009 499 |
| 15 mpg (US) | 18.014 249 |
| 20 mpg (US) | 24.018 999 |
| 25 mpg (US) | 30.023 748 |
| 30 mpg (US) | 36.028 498 |
| 40 mpg (US) | 48.037 997 |
| 50 mpg (US) | 60.047 496 |
Mile per imperial gallon to Mile per US gallon conversion table
| Mile per imperial gallons (mpg (imp)) | Mile per US gallons (mpg (US)) |
|---|---|
| 1 mpg (imp) | 0.832 674 18 |
| 2 mpg (imp) | 1.665 348 4 |
| 3 mpg (imp) | 2.498 022 6 |
| 4 mpg (imp) | 3.330 696 7 |
| 5 mpg (imp) | 4.163 370 9 |
| 10 mpg (imp) | 8.326 741 8 |
| 15 mpg (imp) | 12.490 113 |
| 20 mpg (imp) | 16.653 484 |
| 25 mpg (imp) | 20.816 855 |
| 30 mpg (imp) | 24.980 226 |
| 40 mpg (imp) | 33.306 967 |
| 50 mpg (imp) | 41.633 709 |
Frequently asked
How many mile per imperial gallons are in a mile per us gallon?
One mile per us gallon equals 1.200949926 mile per imperial gallons (mpg (US) → mpg (imp)). That figure is exact, not rounded.
How do you convert mile per us gallons to mile per imperial gallons?
Multiply the number of mile per us gallons by 1.2009499255 to get mile per imperial gallons.
What is 1 mpg (imp) in mile per us gallons?
One mile per imperial gallon is 0.8326741846 mile per us gallons.
What is 10 mpg (US) in mpg (imp)?
10 mpg (US) = 12.009 499 mpg (imp).
What exactly is a mile per us gallon?
The US EPA figure.
What exactly is a mile per imperial gallon?
UK figures use the larger imperial gallon, so they look about 20% better than US ones for the same car.