mpg-uk to mpg-us | Exact Decimal + Formula
1 Miles per Gallon (UK) = 0.832674 Miles per Gallon (US)
One miles per gallon equals exactly 1 mileses per gallon — a fixed ratio you can memorize. Real-world use: official fuel-economy ratings in the united kingdom. This page expresses those values in mileses per gallon, which is used for epa fuel-economy ratings in the united states. Use the calculator above, then check the reference table for common values from 0.001 to 1000.
About Miles per Gallon (UK) and Miles per Gallon (US)
Miles per Gallon (UK) (mpg (UK))
UK miles per gallon uses the larger imperial gallon, so the same car shows a higher UK MPG figure.
Where it's used: Official fuel-economy ratings in the United Kingdom.
Miles per Gallon (US) (mpg (US))
US miles per gallon measures how many miles a vehicle travels per gallon of fuel — higher is better.
Where it's used: EPA fuel-economy ratings in the United States.
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Formula
mpg (US) = mpg (UK) × 1
To convert Miles per Gallon (UK) to Miles per Gallon (US), use the formula displayed above.
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Miles per Gallon (UK) to Miles per Gallon (US): Quick Reference Table
| Miles per Gallon (UK) | Miles per Gallon (US) (Decimal) | Fraction |
|---|---|---|
| 0.001 mpg (UK) | 0.000833 mpg (US) | - |
| 0.01 mpg (UK) | 0.008327 mpg (US) | - |
| 0.1 mpg (UK) | 0.083267 mpg (US) | - |
| 0.5 mpg (UK) | 0.416337 mpg (US) | - |
| 1 mpg (UK) | 0.832674 mpg (US) | - |
| 2 mpg (UK) | 1.665348 mpg (US) | - |
| 5 mpg (UK) | 4.163371 mpg (US) | - |
| 10 mpg (UK) | 8.326742 mpg (US) | - |
| 25 mpg (UK) | 20.816855 mpg (US) | - |
| 50 mpg (UK) | 41.633709 mpg (US) | - |
| 100 mpg (UK) | 83.267418 mpg (US) | - |
| 250 mpg (UK) | 208.168546 mpg (US) | - |
| 500 mpg (UK) | 416.337092 mpg (US) | - |
| 1000 mpg (UK) | 832.674184 mpg (US) | - |
mpg (UK) to mpg (US) Formula and Examples
Direct Formula
mpg (US) = mpg (UK) × 1 Inverse Formula
mpg (UK) = mpg (US) × 1.20095 Mental Math Shortcut
Divide the value by roughly 1.2 to quickly estimate the converted result.
Common Miles per Gallon (UK) to Miles per Gallon (US) Calculations
- 5 mpg (UK) = 4.163371 mpg (US)
- 10 mpg (UK) = 8.326742 mpg (US)
- 50 mpg (UK) = 41.633709 mpg (US)
- 100 mpg (UK) = 83.267418 mpg (US)
- 500 mpg (UK) = 416.337092 mpg (US)
Precision & Practical Use
For example, 10 mpg (UK) = 8.326742 mpg (US) — roughly standard single unit scale.
Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most fuel consumption applications, 2–3 significant figures are plenty.
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How to Convert Miles per Gallon (UK) to Miles per Gallon (US)
How many miles per gallon (us)s are in one miles per gallon (uk)?
One Miles per Gallon (UK) (mpg (UK)) equals 0.832674 Miles per Gallon (US) (mpg (US)). To convert miles per gallon (uk)s to miles per gallon (us)s, multiply the miles per gallon (uk) value by 0.832674.
How do I convert Miles per Gallon (UK) to Miles per Gallon (US)?
Multiply your miles per gallon (uk) value by 0.832674 to get the result in Miles per Gallon (US): mpg (US) = mpg (UK) × 0.832674. For example, 5 mpg (UK) = 4.163371 mpg (US).
What is the formula for converting mpg (UK) to mpg (US)?
The conversion formula is mpg (US) = mpg (UK) × 0.832674. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.
Is there a quick mental estimate for mpg (UK) to mpg (US)?
Divide the value by roughly 1.2 to quickly estimate the converted result.
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