Is a higher L/100km better?

No. In L/100km, a lower number is better (less fuel used). In MPG, a higher number is better (more distance traveled).

Fuel Efficiency Converter – MPG & L/100km Service | CalcTools

Convert between MPG and Liters per 100km. Professional tool for travel budgeting and car research.

Understanding your vehicle's fuel efficiency is key to budgeting for travel and reducing your environmental impact. However, with the US using MPG and Europe using L/100km, comparing cars can be confusing. Our Fuel Efficiency service does the complex inverse math for you, allowing you to compare vehicle economy regardless of where it was manufactured or where you are driving.

Enter Efficiency

Source Unit

Target Unit

Converted Economy

10 km/L = 10 L/100km

Source Unit10 km/L

Target UnitL/100km

How it Works

The tool performs unit conversions for both distance and volume, then applies the inverse calculation needed to switch between 'distance-per-fuel' and 'fuel-per-distance' models with high accuracy.

Calculation Formula

L/100km = 235.215 / US MPG

Calculation Examples

1. **Comparison**: 30 MPG = **7.84 L/100km**. 2. **Efficiency**: 50 MPG = **4.7 L/100km**.

Why use this tool in your daily life?

Smart travel budgeting. This service helps you accurately project your fuel costs for long trips and enables you to make truly informed comparisons when shopping for a new, more efficient vehicle.