Cars

Car and trip calculator

Nine calculations: cost per kilometer, trip cost, distance and time, gasoline versus ethanol, monthly fuel, km/h to mph conversion, power from torque, tire size and depreciation. The fuel comparison uses each fuel's consumption, not just the price per liter.

9 functionsCars and Transport

9 functions

Fuel per km

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Cost per km

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Cost per 100 km

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Fill in the fields and the result appears as you type.

Cost per kilometer

Fill in the fields and the result appears as you type.

Fuel price

Fuel economykm/Lkm/L

Maintenance per kmoptional

Other costs per kmoptional

Result

Fill in the fields and the result appears as you type.

Cost per kilometer

Function guide

What it does: Calculates what one kilometre costs to drive, adding fuel and maintenance.
What it is for: For deciding whether to take the car, comparing two vehicles and reimbursing private use for business travel.
When to use it: Use it when the car's consumption is known. The result is the variable cost: tax, insurance and depreciation stay out, because they do not grow with the odometer in the same proportion.
What to fill in: Fuel price per litre, consumption in kilometres per litre, maintenance cost per kilometre and any other cost per kilometre.
Formula: Fuel per km = price ÷ consumption. Cost per km = fuel per km + maintenance per km + other cost per km. Cost per 100 km = cost per km × 100.
What each result means: The fuel share, the total per kilometre and the total per hundred kilometres. Tolls are not included — they are fixed per stretch, not per distance.
Worked example: With fuel at 6 and 12 km per litre the fuel share is 0.50 per km; adding 0.20 of maintenance gives 0.70 per km and 70 per 100 km.

Each calculation's assumptions are in the function guide — no constant stays hidden.

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