L/100 km to MPG Converter
Convert L/100 km to MPG (both US and UK gallon variants) for car reviews, comparing manufacturer specs and translating European efficiency data to US figures.
Last updated: May 2026
Related tools and sections
L/100 km to MPG reference
| L/100 km | MPG (US) | Typical vehicle |
|---|---|---|
| 4 | 58.8 | Efficient hybrid (e.g. Prius) |
| 5 | 47.0 | Economy hatchback |
| 6 | 39.2 | Compact petrol car |
| 7 | 33.6 | Average family car |
| 8 | 29.4 | Mid-size sedan or small SUV |
| 10 | 23.5 | Larger SUV or light truck |
| 12 | 19.6 | Full-size SUV |
| 15 | 15.7 | Heavy truck or performance car |
Frequently Asked Questions
Why are there two different fuel efficiency metrics?
Europe uses litres per 100 km (how much fuel for a fixed distance). North America uses miles per gallon (how far you go on a fixed amount of fuel). They measure opposite concepts: consumption vs. economy. This converter translates between the two.
How does the formula work?
MPG (US) = 235.214583 ÷ L/100km. The constant accounts for unit conversion (km to miles, litres to gallons). Lower L/100km values mean better economy and convert to higher MPG values. A car using 5 L/100km gets about 47 MPG.
Why isn't this conversion straightforward?
Because the units measure opposite directions. Lower consumption (L/100km) = better economy (higher MPG). A 10% reduction in consumption doesn't equal a 10% increase in MPG—the relationship is inverse. That's why a constant divisor is needed.
When would I use this?
Comparing car specs across regions, reading international automotive forums, or evaluating fuel efficiency in your preferred metric. US buyers see MPG, European buyers see L/100km. This converter bridges that gap instantly.