Do I need to sign up?

No. The tool works without an account.

Are my data uploaded?

Compatible operations run locally in the browser.

L/100km = (fuel liters / distance km) * 100. km/L = distance / fuel. MPG = (distance miles / fuel gallons).

Efficiency is infinite or undefined. The tool warns and avoids division by zero.

Calculate fuel efficiency from distance and fuel used. Supports L/100km, km/L, MPG.

Fuel efficiency

8.00 L/100km

12.50 km/L · 29.40 MPG

DistanceDistance unitFuel usedFuel unit

Example 1: 100 km with 8 L → 8 L/100km (12.5 km/L)

Example 2: 300 mi with 10 gal → ~30 MPG

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Recommended next step

After using Fuel Efficiency Calculator, continue with Fuel Cost Calculator.

Tools selected to complete the same task.

4 steps

Tool guide

Practical information to understand the result and use this tool correctly.

Calculate fuel efficiency from distance and fuel used. Supports L/100km, km/L, MPG.

The tool runs directly in the browser for immediate results.

Do I need to sign up?: No. The tool works without an account.
Are my data uploaded?: Compatible operations run locally in the browser.
How is fuel efficiency calculated?: L/100km = (fuel liters / distance km) * 100. km/L = distance / fuel. MPG = (distance miles / fuel gallons).
What if fuel used is zero?: Efficiency is infinite or undefined. The tool warns and avoids division by zero.