Calculator

Cost per kilometre calculator

Enter a year's figures. Leave out anything you don't know: the total adds up whatever you fill in.

Result

Cost per km

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Fuel

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Maintenance and parts

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Insurance

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Road tax (IUC)

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Depreciation

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Cost per year

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Fill in the fields to see the result.

How it works

Fuel per kilometre comes straight from consumption and price. Every yearly cost is divided by the kilometres you drive in a year.

Fixed costs weigh more when a car is driven little: the same insurance spread over 5,000 km costs six times more per kilometre than over 30,000 km.

Cost per km = consumption ÷ 100 × fuel price + yearly costs ÷ kilometres per year

Your consumption, without the maths

Log each refuel in seconds, with the litres, the price and whether you filled the tank. The Pro plan works out average consumption from full-tank stretches.

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Start with your next refuel.

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