Calculator for Spain. The rates, thresholds and reference prices used here come from Spanish legislation and market data, so the result does not apply to other countries.
Real Car Costs
Calculate your car's annual running cost, including everyday costs and cost per kilometre.
The real cost of a car goes far beyond fuel and insurance. It includes vehicle finance or depreciation, parking, maintenance and servicing, road tax and MOT. Many drivers underestimate their vehicle's real cost by 30–50% by not taking all these items into account together.
This calculator helps you find the total monthly cost and cost per kilometre, the two most useful indicators for comparing your own car with alternatives such as public transport, car-sharing or vehicle rental.
MONTHLY ESTIMATION
Calculated based on your specific consumption and annual driving habits.
Annual Total
0 €
Cost per KM
0.00 €
Expense Distribution
"According to eco-driving guides from IDAE and the DGT, reducing your speed from 120 to 110 km/h can lower fuel consumption by around 10–15%. Over 15,000 km, that can mean roughly €150 less in fuel."
The Real Cost of Owning a Car in Spain
We analyse all the costs: fuel, insurance, taxes, maintenance and depreciation. Do you know how much each kilometre actually costs you?
Read article →Amounts are estimates and depend on usage, model and the specific circumstances of each driver.
Reference values (2026). Fuel prices vary daily — check the current official price at the Spanish government fuel-price portal. Maintenance ranges are indicative figures from OCU and DGT references.
How the real cost of a car is calculated
The calculation adds two blocks. The first is variable spending, which depends directly on the kilometres you drive: fuel is obtained by multiplying your average consumption (litres per 100 km) by annual kilometres and by the fuel price, divided by one hundred. The second block is fixed costs, which you pay whether you drive a lot or a little: insurance, road tax, MOT, scheduled maintenance, tyres, parking and, where applicable, the finance instalment. The sum of both divided by annual kilometres gives the cost per kilometre, the most useful figure for comparing transport alternatives.
Worked example
A driver covers 15,000 km a year in a car that uses 6 l/100 km, paying €1.50/l for diesel. Fuel costs (6 × 15,000 / 100) × 1.50 = 900 × 1.50 = €1,350 per year. To that they add €450 insurance, €120 road tax, €45 prorated MOT, €400 maintenance and tyres and €600 parking: €1,615 of fixed costs. The total comes to €2,965 a year, about €247 a month, giving a cost per kilometre of €0.20.
Indicative cost by expense type (15,000 km/year)
| Item | Annual cost |
|---|---|
| Fuel | 1.350 € |
| Insurance | 450 € |
| Maintenance and tyres | 400 € |
| Parking / garage | 600 € |
| Road tax | 120 € |
| MOT (prorated) | 45 € |
How to interpret the result
The key figure is not the annual total but the cost per kilometre, because that is what lets you compare fairly with other options. There is no universal threshold separating a "good" cost from a "bad" one: the figure depends on the vehicle, whether it is financed, fuel prices, insurance, parking and above all the kilometres you drive each year, since fixed costs are spread across them. The useful comparison is therefore against your own concrete alternative: work out what the same journeys would cost by public transport, car-sharing or occasional rental and compare that with the cost per kilometre you get here. Remember too that this calculation does not include vehicle depreciation, which can easily add between €1,500 and €3,000 a year on a relatively new car and is the factor that most distorts comparisons.