The sticker price is not what a car actually costs. A vehicle you buy for $35,000 can easily set you back $50,000 or more by the time you sell it, because fuel, insurance, maintenance, and unexpected repairs keep arriving long after the loan documents are signed. This total cost of ownership calculator adds up the full five-year ownership stack and then divides it by every mile you drive, so you can compare two cars on what they really cost to live with — not just on the monthly note.
Slide the inputs and every figure updates instantly. The result card shows each five-year cost component, the grand total, and your true cost per mile, which is the single number that tells you whether that cheaper car was actually a bargain.
How to Use
- Enter the Purchase Price — the negotiated out-the-door amount after trade-in and incentives, not the MSRP on the window.
- Set your Annual Miles Driven. The US average is around 13,500 miles, but commuters and road-trippers should enter their real number; fuel and cost-per-mile scale directly with it.
- Type the Fuel Economy as combined MPG from the EPA sticker. Use the combined figure, not the optimistic highway number.
- Enter your local Fuel Price per gallon. If prices swing a lot, plug in a conservative average.
- Add Insurance as your annual full-coverage premium. Luxury and sports cars cost far more to insure than economy sedans, so this line alone can change a buying decision.
- Enter Maintenance — scheduled service like oil changes, tires, brakes, and factory-recommended upkeep — as a yearly estimate.
- Add Out-of-Warranty Repairs. New cars rarely need these in year one, but out-of-warranty years three through five are when they show up.
- Set the Resale Value After 5 Years — what you expect to trade or sell the car for. Depreciation is often the single largest cost, so estimate it honestly.
The result card breaks the five-year cost into fuel, insurance, maintenance, and repairs, then subtracts the resale value to give the net 5-Year Total Cost of Ownership, and finally divides by total miles to show your Cost Per Mile.
The TCO Formula
A true cost-to-own calculation treats the car like a five-year project, not a single purchase:
TCO = Purchase Price + Fuel (5 yr) + Insurance (5 yr) + Maintenance (5 yr) + Repairs (5 yr) − Resale Value
Each annual operating cost is multiplied by five, because ownership is measured over the period most buyers keep a new vehicle before trading it in. The resale value is subtracted because that money comes back to you when you sell — it is a recovery, not an expense.
Once the five-year total is known, the cost-per-mile figure is simply:
Cost Per Mile = TCO ÷ (Annual Miles × 5)
This is the number that matters for day-to-day decisions. If your cost per mile comes out to $0.80, a 20-mile commute quietly costs you $16 each way, every workday. Comparing two cars on cost-per-mile also neutralizes the effect of how much you drive: a low-depreciation luxury car can be cheaper per mile for a high-mileage driver than a cheap commuter car that falls apart.
What Drives the True Cost
Four costs that do not appear on the buyer's order dominate real-world ownership:
- Depreciation — the gap between what you paid and what it is worth in year five. Many new cars lose 20–30% of their value the moment you drive off the lot, and another 15–25% by year three. Resale value is the single biggest lever in this calculator.
- Fuel — driven entirely by your MPG and how many miles you drive. Dropping from 28 mpg to 22 mpg on 12,000 miles a year costs roughly $690 more annually at $3.50 per gallon.
- Insurance — varies by model, theft rate, repair complexity, and your driving record. A sports car can cost twice the premium of a sedan with identical safety ratings.
- Maintenance and repairs — reliable, mainstream brands with cheap parts keep this low; European luxury brands and turbocharged or hybrid drivetrains can spike it, especially after the warranty ends.
A car that looks expensive on the lot but holds its value, is cheap to insure, and gets great fuel economy can cost less over five years than a cheaper car that depreciates fast and guzzles gas.
Examples
Example 1 — A sensible family sedan. Purchase price $35,000, 12,000 miles a year at 28 mpg and $3.50 per gallon, insurance $1,500/yr, maintenance $1,200/yr, repairs $800/yr, and a resale value of $15,000 after five years. Fuel over five years is $7,500; insurance is $7,500; maintenance is $6,000; repairs are $4,000. The net 5-year TCO is $45,000 over 60,000 miles, or $0.75 per mile.
Example 2 — A cheap car that depreciates hard. A $25,000 compact with 10,000 miles a year at 25 mpg and $3.00 per gallon, insurance $1,200/yr, maintenance $800/yr, no budgeted repairs, and a resale value of $0 because it runs into the ground. Fuel is $6,000, insurance $6,000, and maintenance $4,000, for a 5-year TCO of $41,000 over 50,000 miles — $0.82 per mile. The cheaper sticker still costs more per mile once depreciation and no resale are factored in.
Example 3 — A high-value luxury purchase. A $1,000,000 flagship driven 15,000 miles a year at 18 mpg and $4.00 per gallon, with premium insurance of $3,000/yr, $2,000/yr maintenance, $1,500/yr repairs, and a $400,000 resale value. Fuel is about $16,667, and the net 5-year TCO is roughly $649,167 over 75,000 miles, or about $8.66 per mile. Running this number before signing reveals just how expensive very-low-mileage luxury use really is.
FAQ
What is total cost of ownership for a car?
Total cost of ownership (TCO) is the full amount a vehicle costs you over the time you own it. For a five-year horizon it equals the purchase price plus five years of fuel, insurance, maintenance, and repairs, minus what you can sell the car for at the end. It captures depreciation and running costs that the sticker price hides.
Why is cost per mile more useful than the monthly payment?
A monthly payment only reflects the loan, while cost per mile includes every dollar you spend and spreads it across the distance you actually drive. A low car payment on a gas-thirsty, poorly insured model can cost more per mile than a slightly higher payment on a fuel-efficient, reliable car that holds its value.
How much does fuel really add over five years?
Fuel equals annual miles divided by MPG, times fuel price per gallon, times five. On 12,000 miles a year at 28 mpg and $3.50 per gallon, that is $1,500 per year, or $7,500 over five years. Dropping to 22 mpg pushes the five-year fuel bill to about $9,545.
Should I include insurance and maintenance in the total?
Yes. These are recurring cash costs that never appear on the buyer's order, yet together they often exceed the purchase price of the vehicle. Leaving them out is the most common reason buyers underestimate what a car actually costs to own.
How do I estimate resale value after five years?
Look up the model on a used-car pricing site and find the typical five-year-old version of that vehicle. Brands known for reliability and strong residual value (many Toyotas, Hondas, and luxury sedans) hold more of their value; domestic sedans and some EVs depreciate faster. Be conservative, because depreciation is the largest single TCO component.
Is this calculator different from an EV-vs-gas comparison?
This calculator is a single-vehicle five-year ownership stack. It answers "what will this one car cost me?" An EV-vs-gas tool instead compares two vehicles side by side. Use this one to cost out a specific car; use a comparison tool to choose between two candidates.
Disclaimer
This total cost of ownership calculator is provided for informational purposes only and does not constitute financial, insurance, or automotive purchasing advice. All figures are estimates based on the inputs you enter; actual fuel prices, insurance premiums, repair costs, and resale values vary by location, vehicle condition, mileage, and market. Always verify quotes with insurers, dealers, and used-car pricing guides before making a purchase decision.