Miles per Gallon (US) to Miles per Gallon (UK) Converter
Convert between MPG (US/UK), L/100km, km/L, and more fuel economy units. Compare car efficiency across different measurement systems.
How to Convert Miles per Gallon (US) to Miles per Gallon (UK)
Converting between Miles per Gallon (US) and Miles per Gallon (UK) is straightforward with our free online converter above. Simply enter the value you want to convert, select the units, and get instant, accurate results.
Quick Steps:
- Enter the value you want to convert in the "Miles per Gallon (US)" field
- Select "Miles per Gallon (US)" as your "From" unit (if not already selected)
- Select "Miles per Gallon (UK)" as your "To" unit (if not already selected)
- The conversion result will appear instantly in the "Miles per Gallon (UK)" field
- You can also convert in reverse by entering a value in the "Miles per Gallon (UK)" field
Tip: Our converter works both ways - you can convert from Miles per Gallon (US) to Miles per Gallon (UK) or from Miles per Gallon (UK) to Miles per Gallon (US) instantly.
Common Miles per Gallon (US) to Miles per Gallon (UK) Conversions
| Miles per Gallon (US) | Miles per Gallon (UK) |
|---|---|
| 1 | 1.20095 |
| 5 | 6.004752 |
| 10 | 12.009505 |
| 25 | 30.023762 |
| 50 | 60.047525 |
| 100 | 120.095049 |
When to Use Miles per Gallon (US) vs Miles per Gallon (UK)
Miles per Gallon (US) is commonly used in most countries worldwide as part of the metric system.
Miles per Gallon (UK) is commonly used in most countries worldwide as part of the metric system.
Understanding when to use each unit helps ensure accurate communication and measurements in different contexts, whether you're traveling, cooking, working on projects, or conducting scientific research.
Frequently Asked Questions
How do I convert MPG to L/100km?
Divide 235.2 by MPG (US). For example, 30 mpg (US) = 7.84 L/100km. This inverse relationship means higher MPG = lower L/100km (better efficiency).
What's the difference between US and UK MPG?
UK gallons are 20% larger than US gallons (4.546L vs 3.785L). So the same fuel economy shows as ~20% higher in UK MPG. 30 mpg (US) = 36 mpg (UK).
Why is L/100km used in Europe instead of km/L?
L/100km directly shows fuel consumption - lower is better. It's easier to calculate fuel costs: multiply L/100km by distance (in 100s of km) and fuel price.
What's good fuel economy?
Generally, 30+ mpg (US), 8 L/100km or less, or 12+ km/L is considered good. Hybrids achieve 50+ mpg, while trucks often get 15-20 mpg.
How do I calculate fuel cost for a trip?
If using L/100km: Cost = (Distance ÷ 100) × L/100km × Fuel price. If using MPG: Cost = (Distance ÷ MPG) × Fuel price per gallon.
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