FUEL CONSUMPTION CONVERSION
Miles per imperial gallon to Miles per US gallon.
Convert miles per imperial gallon (mpg (UK)) to miles per us gallon (mpg (US)), with the math explained.
30 mpg (UK) = 24.98022554 mpg (US)
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 imperial gallon to miles per us 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 (US) = mpg (UK) × 0.832674184630 mpg (UK) = 24.9802255389 mpg (US)
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 (UK) to mpg (US) conversion table
| Miles per imperial gallon (mpg (UK)) | Miles per US gallon (mpg (US)) |
|---|---|
| 1 mpg (UK) | 0.832674184629 mpg (US) |
| 2 mpg (UK) | 1.66534836926 mpg (US) |
| 5 mpg (UK) | 4.16337092314 mpg (US) |
| 10 mpg (UK) | 8.32674184629 mpg (US) |
| 20 mpg (UK) | 16.6534836926 mpg (US) |
| 50 mpg (UK) | 41.6337092314 mpg (US) |
| 100 mpg (UK) | 83.2674184629 mpg (US) |
| 500 mpg (UK) | 416.337092314 mpg (US) |
| 1,000 mpg (UK) | 832.674184629 mpg (US) |
About 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 conversionsAbout 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 conversionsCommon questions
What is 1 mpg (UK) in mpg (US)?
One miles per imperial gallon equals 0.832674184629 mpg (US). 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.
BROWSE BY UNIT