Convert miles per gallon (UK) to miles per gallon (US)

Here you can quickly calculate how many miles per gallon (US) fit in one miles per gallon (UK).

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Conversion from miles per gallon (UK) to miles per gallon (US) example

Starting value Increment Accuracy

To convert miles per gallon (UK) to miles per gallon (US), divide 0.832674 by the input value.

1 mpg (UK) = 0.832674 mpg (US)

Example: 1 Miles per gallon (UK) = 0.832674 Miles per gallon (US)

US and UK mpg use different gallons: the imperial gallon (4.546 L) is 20% larger than the US gallon (3.785 L). The same car therefore scores about 20% higher in UK figures, 40 mpg UK ≈ 33 mpg US. Check which gallon a source means.
Mpg is inverted relative to consumption, so improvements are not linear: going from 10 to 20 mpg halves fuel use, while 40 to 50 mpg cuts it by only a fifth. Convert to l/100 km when comparing savings, that scale is proportional to actual fuel burned.

Score: 0

5.4 miles per gallon (US) equals 6.49 miles per gallon (UK).

Correct answer: 5.4 miles per gallon (US) = 6.49 miles per gallon (UK).

17.9 miles per gallon (UK) equals 17.1 miles per gallon (US).

Correct answer: 17.9 miles per gallon (UK) = 14.9 miles per gallon (US).

16.4 miles per gallon (US) equals 17.7 miles per gallon (UK).

Correct answer: 16.4 miles per gallon (US) = 19.7 miles per gallon (UK).