⛽ MPG (UK) to MPG (US) Converter
Free online tool to convert MPG (UK) (mpg (UK)) to MPG (US) (mpg). Enter a value and get instant, accurate results.
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MPG (UK) to MPG (US) Conversion Table
| MPG (UK) (mpg (UK)) | MPG (US) (mpg) |
|---|---|
| 10 mpg (UK) | 8.326731 mpg |
| 15 mpg (UK) | 12.490097 mpg |
| 20 mpg (UK) | 16.653462 mpg |
| 30 mpg (UK) | 24.980193 mpg |
| 40 mpg (UK) | 33.306924 mpg |
| 50 mpg (UK) | 41.633655 mpg |
Conversion Formula
MPG (US) ↔ L/100km: MPG = 235.215 ÷ L/100km (reciprocal — not linear) MPG (UK) ↔ MPG (US): US MPG = UK MPG × 0.8327 (imperial gallon is 20% larger) km/L ↔ MPG (US): MPG = km/L × 2.3521
About MPG (UK) to MPG (US) Conversions
Need to convert a fuel efficiency figure from MPG (UK) to MPG (US)? This free converter gives the exact result — useful for international car comparisons and travel planning.
This conversion uses a non-linear (reciprocal) relationship, so a simple multiplication factor does not apply. The formula section below explains the method, and the reference table shows common converted values.
This page includes a reference table of common MPG (UK) values pre-converted to MPG (US), the conversion formula, and frequently asked questions. All values use internationally recognized conversion standards.
Frequently Asked Questions
How do I convert MPG (UK) to MPG (US)?
This conversion is non-linear. Use the calculator above for accurate results, or refer to the formula section on this page.
How many MPG (US) are in 1 MPG (UK)?
The relationship between MPG (UK) and MPG (US) is non-linear. Use the calculator above or the reference table on this page for specific values.
Is MPG (UK) larger or smaller than MPG (US)?
The size relationship between MPG (UK) and MPG (US) depends on the input value because this conversion is non-linear (reciprocal).
When would I use MPG (US) instead of MPG (UK)?
MPG is the standard in the United States. Match the unit to the market where the vehicle is sold or the data source you are reading.
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All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.