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Convert Miles per Gallon (UK) to Miles per Gallon (US)

mpg to mpg · fuel economy conversion

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↔ Convert Miles per Gallon (US) to Miles per Gallon (UK) instead

What are miles per gallon (uk) and miles per gallon (us)?

Miles per gallon (UK) uses the larger 4.546-liter imperial gallon, so its numbers run higher than US mpg. Miles per gallon (US) is the standard US fuel-economy measure, based on the 3.785-liter US gallon. For reference: 30 US mpg is about 12.8 km/L, a typical efficient car.

How to convert miles per gallon (uk) to miles per gallon (us)

1 mpg = 0.832673 mpg. To convert, multiply the number of miles per gallon (uk) by 0.832673. For example, 5 mpg = 4.16337 mpg, and 20 mpg = 16.6535 mpg. To go the other way, multiply miles per gallon (us) by 1.20095 (since 1 mpg = 1.20095 mpg).

Miles per Gallon (UK) to Miles per Gallon (US) conversion table

Miles per Gallon (UK) (mpg)Miles per Gallon (US) (mpg)
20 16.6535
25 20.8168
30 24.9802
35 29.1436
40 33.3069
50 41.6337
60 49.9604

FAQ

What is 1 mpg in mpg?

1 mpg = 0.832673 mpg. To convert any amount, multiply the number of miles per gallon (uk) by 0.832673.

How do I convert miles per gallon (us) back to miles per gallon (uk)?

Go the other way: 1 mpg = 1.20095 mpg, so multiply miles per gallon (us) by 1.20095 to get miles per gallon (uk).

Is a miles per gallon (uk) bigger than a miles per gallon (us)?

No — 1 mpg is the smaller unit, equal to 0.832673 mpg (it takes 1.20095 mpg to make one mpg).

Are these fuel economy conversions exact?

They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.

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