How to convert liters per 100km to MPG (US)
Liters per 100 km and MPG (US) are related by a formula rather than a single factor. Fuel economy conversions let you compare cars rated in different countries. Note that L/100 km is an inverse measure — lower is better.

Liters per 100 km to MPG (US) conversion table
| Liters per 100 km (L/100 km) | MPG (US) (mpg) |
|---|---|
| 3 L/100 km | 78.4048611111 mpg |
| 5 L/100 km | 47.0429166667 mpg |
| 8 L/100 km | 29.4018229167 mpg |
| 10 L/100 km | 23.5214583333 mpg |
| 15 L/100 km | 15.6809722222 mpg |
| 20 L/100 km | 11.7607291667 mpg |
| 25 L/100 km | 9.40858333333 mpg |
| 30 L/100 km | 7.84048611111 mpg |
| 40 L/100 km | 5.88036458333 mpg |
| 50 L/100 km | 4.70429166667 mpg |
About the units
Liters per 100 km (L/100 km)
Liters per 100 kilometers is fuel used to travel 100 km; lower numbers mean better economy.
MPG (US) (mpg)
US miles per gallon is miles traveled per US gallon (3.785 L) of fuel.
How to use this converter
- Type the number of liters per 100km (L/100 km) in the input box.
- The result in MPG (US) appears instantly — no button needed.
- See the same value in every other fuel economy unit just below.
- Use “Swap units” to convert MPG (US) back to liters per 100km.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many MPG (US) are in one liters per 100 km?
235.214583333 mpg corresponds to 1 L/100 km. Because this scale uses an offset or an inverse relationship, there is no single multiplication factor — use the formula above.
How do I convert liters per 100km to MPG (US)?
Apply the formula shown on this page, or enter your value in the converter for an instant exact answer.
What is 25 L/100 km in mpg?
25 L/100 km = 9.40858333333 mpg. Also, 10 L/100 km = 23.5214583333 mpg and 40 L/100 km = 5.88036458333 mpg.
What is the difference between a liters per 100 km and a mpg (us)?
Liters per 100 kilometers is fuel used to travel 100 km; lower numbers mean better economy. US miles per gallon is miles traveled per US gallon (3.785 L) of fuel.
Is this tool free and private?
Yes — the Liters per 100 km to MPG (US) is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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