ThrottleJournalTrue Cost of Owning a Car: Beyond the Sticker Price
The price on the showroom board is only the start of what a car costs you. Over several years, depreciation, fuel, insurance and servicing often add up to more than the purchase price itself. Two cars with the same sticker price can differ by lakhs of rupees in real cost. This guide breaks down each cost, shows a worked comparison of a petrol and a diesel car, and explains why the cheapest car to buy isn’t always the cheapest to own. Try your own numbers in the calculator below.
Enter your car’s price, expected resale value, yearly distance and running costs to see your total cost over the years you plan to keep it.
Car total cost of ownership calculator
What total cost of ownership includes
Total cost = Depreciation + Fuel + Insurance + Servicing and repairs + Other costs + Loan interest
- Depreciation is the value the car loses: purchase price minus what you can sell it for.
- Fuel is distance ÷ mileage × fuel price, for every year you own it.
- Insurance is your yearly premium.
- Servicing and repairs covers scheduled maintenance, consumables and unexpected repairs.
- Other includes tyres, parking, tolls, fastag, cleaning and taxes.
- Loan interest is the total interest you pay if you borrow. Our EMI calculator can work this out.
Worked example: petrol vs diesel over 5 years
Both cars driven 12,000 km a year for 5 years.
| Petrol car | Diesel car | |
|---|---|---|
| Purchase price | ₹10,00,000 | ₹11,50,000 |
| Resale after 5 years | ₹5,00,000 | ₹6,00,000 |
| Mileage | 15 km/l | 19 km/l |
| Fuel price | ₹100 | ₹90 |
| Insurance per year | ₹30,000 | ₹33,000 |
| Servicing per year | ₹15,000 | ₹18,000 |
| Other per year | ₹10,000 | ₹10,000 |
The petrol car’s costs
| Item | 5-year cost | Share |
|---|---|---|
| Depreciation | ₹5,00,000 | 43% |
| Fuel | ₹4,00,000 | 34% |
| Insurance | ₹1,50,000 | 13% |
| Servicing | ₹75,000 | 6% |
| Other | ₹50,000 | 4% |
| Total | ₹11,75,000 |
That is ₹2,35,000 a year, ₹19,583 a month and ₹19.58 per km.
The diesel car’s costs
Depreciation ₹5,50,000, fuel ₹2,84,211, insurance ₹1,65,000, servicing ₹90,000, other ₹50,000. The total is about ₹11,39,000, which is about ₹2,27,800 a year, ₹18,987 a month and ₹18.99 per km.
Result: the diesel car costs about ₹36,000 less over 5 years, even though it costs ₹1.5 lakh more to buy. It wins because of fuel savings.
What if you drive more or less?
At 20,000 km a year, the same cars cost about ₹14.42 lakh (petrol) and ₹13.29 lakh (diesel). The diesel’s advantage grows to about ₹1.13 lakh. At low distances, the gap shrinks and the petrol car can come out cheaper, because the diesel’s higher price and servicing outweigh its fuel savings. That’s why your yearly distance matters more than almost any other input.
Why depreciation is usually the biggest cost
Most people expect fuel to be the largest expense, but depreciation often is. A new car loses value fastest in the first few years. How much it loses depends on:
- Brand and model demand in the used-car market
- Distance driven and condition
- Service history and number of previous owners
- Fuel type and regulations, which can change resale values for diesel and electric cars
- Colour, variant and accessories
To estimate resale value, check current listings for 3 to 5 year old examples of the same model and distance. Use a realistic figure, not an optimistic one.
6 ways to lower your cost of ownership
- Compare total cost, not just price, between shortlisted cars.
- Pick a model with strong resale demand. A higher resale value reduces depreciation directly.
- Match fuel type to your distance. High-distance drivers usually benefit from more efficient engines.
- Shop for insurance every year. Premiums vary between insurers, and a no-claim bonus can cut them noticeably.
- Keep up with servicing. Skipping it saves money now but can cost more in repairs and resale value later.
- Keep the car longer. Depreciation per year usually falls the longer you own the car, though repair costs can rise.
Frequently asked questions
What is total cost of ownership?
It’s the full cost of owning a car over a set period: the money you lose in value, plus running costs, plus any loan interest.
How do I estimate resale value?
Look at used listings of the same model aged 3 to 5 years with similar distance. Use the typical selling price, not the asking price of a few outliers.
Should I include loan interest?
Yes, if you borrow. Add the total interest from our EMI calculator in the loan interest field.
Is it cheaper to buy a used car?
Often, because the biggest depreciation has already happened. But repair costs can be higher, so check the condition carefully and budget for servicing.
Does total cost of ownership include the time value of money?
Our calculator keeps it simple and doesn’t. If you pay in cash, you also give up the interest that money could have earned, which makes the true cost slightly higher.
Why does the calculator show a cost per km?
It lets you compare cars or trips on equal terms. Divide any total cost by the distance you drive to get the same figure.
The calculator and examples on this page are estimates for general information. Prices, fuel costs and resale values change over time. Read our Disclaimer before making a purchase decision.