Convert mpg (UK) to mpg
miles per imperial gallon to miles per US gallon. Enter a value to convert, or use the mpg (UK) to mpg chart further down the page.
1 mile per imperial gallon equals 0.832674 miles per US gallon. Going the other way, 1 mile per US gallon = 1.20095 miles per imperial gallon.
Note. L/100km is an inverse measure — a lower number means better economy — so converting to or from it uses a reciprocal, not a multiplication.
How to convert mpg (UK) to mpg
To convert miles per imperial gallon to miles per US gallon, multiply the mile per imperial gallon value by 0.8326741846. You can also divide by 1.200949926 to get the same answer.
MPG (US) = MPG (UK) × 0.8326741846
Worked example
Convert 30 MPG (UK) to miles per US gallon:
30 MPG (UK) = 24.9802 MPG (US)
mpg (UK) to mpg conversion chart
Use this mpg (UK) to mpg table for quick reference without typing anything.
| miles per imperial gallon (MPG (UK)) | miles per US gallon (MPG (US)) |
|---|---|
| 5 MPG (UK) | 4.16337 MPG (US) |
| 10 MPG (UK) | 8.32674 MPG (US) |
| 15 MPG (UK) | 12.4901 MPG (US) |
| 20 MPG (UK) | 16.6535 MPG (US) |
| 25 MPG (UK) | 20.8169 MPG (US) |
| 30 MPG (UK) | 24.9802 MPG (US) |
| 35 MPG (UK) | 29.1436 MPG (US) |
| 40 MPG (UK) | 33.307 MPG (US) |
| 50 MPG (UK) | 41.6337 MPG (US) |
| 60 MPG (UK) | 49.9605 MPG (US) |
What is a mile per imperial gallon?
Miles per imperial gallon is the figure quoted in the UK. The imperial gallon is 4.54609 litres, about 20% larger than the US gallon.
What is a mile per US gallon?
Miles per US gallon is the fuel economy figure used on American window stickers. A US gallon is smaller than an imperial gallon, so US MPG figures are about 17% lower than UK MPG for the same car.
Frequently asked questions
How many mpg are in a mile per imperial gallon?
1 mpg (UK) equals 0.832674 mpg. Going the other way, 1 mpg is 1.20095 mpg (UK).
How do you convert mpg (UK) to mpg?
To convert miles per imperial gallon to miles per US gallon, multiply the mile per imperial gallon value by 0.8326741846. You can also divide by 1.200949926 to get the same answer.
What is 10 mpg (UK) in mpg?
10 mpg (UK) equals 8.32674 mpg. The conversion chart on this page lists the other values people look up most often.
Related fuel economy conversions
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