Car & Household

Fuel cost calculator

Liters, costs per kilometer and total costs of a trip.

Updated on Apr 21, 2026 Calculator, calculation path and examples on one page

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Calculator

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Calculation path

Step by step

  1. Calculate liters

    Formula: Distance / 100 × consumption

    Values inserted: 620.0 / 100 × 7.40

    Result: 45.88 l

  2. Calculate costs

    Formula: Liter × price

    Values inserted: 45.88 × €1.82

    Result: €83.50

Instructions

How to use this calculator correctly

How to use the calculator

  • Enter route, consumption and price per liter.
  • Activate return journey if necessary.

Common mistakes

  • Confusing consumption with price.
  • Enter the route twice and also activate the return journey.

Limits of the calculation

  • Average consumption is assumed.

Related guide: Classify car costs with fuel, electricity, credit and taxes

Examples

Typical calculations

180 km there and back with 6.8 l/100 km.

Commute ride

Total cost: €44.55

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25 km one way with 5.2 l/100 km.

Short distance

Total cost: €2.33

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620 km easy with 7.4 l/100 km.

vacation trip

Total cost: €86.25

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FAQ

Frequently asked questions

Can I calculate the return journey together?

Yes, enable the round trip option.

What does l/100 km stand for?

This is the average fuel consumption per 100 kilometers.

Why is real consumption sometimes higher?

Driving style, load, temperature, speed and city traffic have a major influence on consumption.

Can I also use the computer for vacation trips?

Yes, especially for cost estimates per trip or route.

Are tolls and parking costs included?

No, the calculator only takes fuel into account.

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Sources and notes

Rule status and context

Formula
Cost = distance / 100 × consumption × price