FUEL CONSUMPTION CONVERSION
Miles per US gallon to Miles per imperial gallon.
Convert miles per us gallon (mpg (US)) to miles per imperial gallon (mpg (UK)), with the math explained.
30 mpg (US) = 36.02849777 mpg (UK)
Economy (distance per fuel) and consumption (fuel per distance) are reciprocal. Values must be greater than zero.
THE MATH, MADE SIMPLE
How to convert miles per us gallon to miles per imperial gallon
Fuel economy measures distance per fuel, while consumption measures fuel per distance. Conversions between these two types require division rather than a fixed multiplier.
mpg (UK) = mpg (US) × 1.20094992630 mpg (US) = 36.0284977651 mpg (UK)
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.Economy (distance per fuel) and consumption (fuel per distance) are reciprocal. Values must be greater than zero.
QUICK REFERENCE
mpg (US) to mpg (UK) conversion table
| Miles per US gallon (mpg (US)) | Miles per imperial gallon (mpg (UK)) |
|---|---|
| 1 mpg (US) | 1.2009499255 mpg (UK) |
| 2 mpg (US) | 2.40189985101 mpg (UK) |
| 5 mpg (US) | 6.00474962752 mpg (UK) |
| 10 mpg (US) | 12.009499255 mpg (UK) |
| 20 mpg (US) | 24.0189985101 mpg (UK) |
| 50 mpg (US) | 60.0474962752 mpg (UK) |
| 100 mpg (US) | 120.09499255 mpg (UK) |
| 500 mpg (US) | 600.474962752 mpg (UK) |
| 1,000 mpg (US) | 1,200.9499255 mpg (UK) |
About the miles per us gallon
Miles per US gallon is a fuel economy unit. It uses the US liquid gallon (3.785411784 L).
All miles per us gallon conversionsAbout the miles per imperial gallon
Miles per imperial gallon is a fuel economy unit. It uses the imperial gallon (4.54609 L).
All miles per imperial gallon conversionsCommon questions
What is 1 mpg (US) in mpg (UK)?
One miles per us gallon equals 1.2009499255 mpg (UK). Economy-to-consumption conversions are reciprocal, so this result is not a fixed multiplier.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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