Fuel Consumption: L/100 km vs km per Liter
Convert between both systems and understand which number actually means better efficiency.
What it does and when to use it
Accurate fuel measurement needs distance and fuel actually used. Some markets use km/L while many comparisons use L/100 km.
What information to enter
Enter distance in kilometers and fuel in liters. If you know only one metric, use the calculator to convert it.
How to understand the result
For L/100 km, lower is better; for km/L, higher is better. Mixing the two causes many wrong comparisons.
Recommended step-by-step workflow
- Check the assumptionsAccurate fuel measurement needs distance and fuel actually used. Some markets use km/L while many comparisons use L/100 km.
- Use matching unitsEnter distance in kilometers and fuel in liters. If you know only one metric, use the calculator to convert it.
- Compare with another scenarioFor L/100 km, lower is better; for km/L, higher is better. Mixing the two causes many wrong comparisons.
Formula at a glance
Short example
Why this matters
Accurate fuel measurement needs distance and fuel actually used. Some markets use km/L while many comparisons use L/100 km.
Step by step
- Define exactly what you want to calculate and which unit is correct.
- Enter values as they appear on a document, receipt, payslip or real measurement.
- Compare at least one extra scenario to see whether the result is sensitive to small input changes.
Numeric example
35 liters over 500 km equals 7 L/100 km or 14.29 km/L.
Mistakes to avoid
- Mixing numbers from different periods or units in one calculation.
- Ignoring assumptions, fees or limits the calculator cannot know by itself.
- Making a large decision from one result without testing a conservative scenario.
When to open the calculator
Open the calculator when you want to turn the explanation into a more exact number using your own inputs.
Common mistakes
- Mixing numbers from different periods or units in one calculation.
- Ignoring assumptions, fees or limits the calculator cannot know by itself.
Frequently Asked Questions
Is this a final answer?
Not always. It is a calculation or estimate based on the values entered.
What should I check before relying on it?
Check units, dates, fees and whether an important personal detail is missing.
Are my inputs saved?
No. The calculation runs in the browser and does not store your personal inputs.