MPG to L/100km: The Ultimate Fuel Efficiency Conversion

Introduction

Fuel efficiency is measured differently around the world. In the US, we look for high Miles Per Gallon (MPG), while in Europe, drivers look for low Liters per 100 Kilometers (L/100km). Because these scales work in opposite directions, the conversion is unique.

The Conversion Formula

To convert between these two units (using US Gallons), you use a fixed constant of 235.215.

• 235.215 ÷ MPG = L/100km
• 235.215 ÷ L/100km = MPG

Practical Examples

If a car uses 6.0 L/100km, you calculate: 235.215 / 6.0 = 39.2 MPG. If your truck gets 15 MPG, its metric equivalent is 15.68 L/100km. This shows that for every 100 km, you use over 15 liters of gas.

Quick Reference Table

• 10 MPG ≈ 23.5 L/100km
• 20 MPG ≈ 11.8 L/100km
• 30 MPG ≈ 7.8 L/100km

Conclusion

By using the 235.215 constant, you can easily translate between these two systems and better understand your vehicle's fuel costs in a global market. Try our converter for quick and accurate conversions.