Used Car Total Cost Calculator (USA)

Q: Is this the same as total cost of ownership (TCO)?

It’s a practical TCO estimate over a chosen period: purchase costs, loan interest, fuel, insurance, maintenance, repairs, minus expected resale value. Taxes and rules vary by location, so treat results as a planning model.

Q: Why do you subtract resale value?

Selling the car returns money to you, which offsets what you paid. A higher resale value generally reduces the net cost of ownership.

Q: What if I sell the car before the loan is paid off?

You typically pay off the remaining loan balance from sale proceeds. If the car is worth less than the balance, the difference increases out-of-pocket cost.

Q: How do I pick a good resale estimate?

Use a conservative assumption and compare scenarios. Strong resale can make a car cheaper to own even if the purchase price is higher.

Estimate the true cost of owning a used car: purchase + taxes/fees + interest + fuel + insurance + maintenance — minus resale value.

Inputs

Purchase price (USD)

Agreed price of the used car (before tax/fees).

Sales tax rate (%)

Use your local combined sales tax.

Title/registration + doc fees (USD)

One-time fees paid at purchase (estimate).

Warranty / inspection (USD)

Optional: extended warranty, inspection, etc.

Down payment (USD)

Cash down reduces the loan principal.

Trade-in credit (USD)

If your state reduces taxable amount via trade-in, this calculator uses that rule (common, not universal).

Financing

Payment method

Choose cash if you’re not financing.

Loan APR (%)

Set to 0 if paying cash.

Loan term (months)

Loan can be longer than your ownership period.

Ownership period (months)

We estimate total cost over this period.

Running costs

Miles per year

Typical US driver is often around 10k–15k miles/year.

Fuel economy (MPG)

Combined MPG estimate.

Gas price (USD/gal)

Average fuel price you expect to pay.

Insurance (USD/month)

Your estimated monthly premium.

Maintenance (USD/month)

Oil, tires, brakes (average monthly).

Repairs (USD/year)

Unexpected repairs buffer (annual).

Resale / depreciation

Resale input mode

Choose the one you know.

Resale % after ownership (%)

Planning estimate; used cars vary a lot.

Resale value after ownership (USD)

If “Resale value” mode is selected, we use this instead of %.

Trade-in reduces taxable amount?

Tax rules differ by state — this is an estimate toggle.

Category	Total	Monthly
Purchase + tax + fees (net)	$0	$0
Loan interest	$0	$0
Fuel	$0	$0
Insurance	$0	$0
Maintenance	$0	$0
Repairs	$0	$0
Total cost	$0	$0

How to use

Enter the purchase price, sales tax, and fees you expect to pay.
If financing, choose Finance and set APR and loan term.
Set your ownership period, miles per year, MPG, and fuel price.
Add estimates for insurance, maintenance, and repairs, then choose a resale method.
Click Calculate to see total cost, cost/month, cost/mile, a breakdown table, and charts.

Tip: If you’re unsure about resale value, use a conservative resale % (lower resale = higher total cost).

Used car total cost: the “real number” beyond the monthly payment

When you shop for a used car, it’s easy to focus on the sticker price or the monthly payment. But the true cost of ownership is usually driven by several buckets: purchase costs (tax, title, registration, doc fees), financing interest (if you use a loan), and ongoing expenses like fuel, insurance, maintenance, and repairs. The part many buyers forget is that your future resale value offsets your cost — a car that holds value better can be cheaper to own even if it costs more upfront.

This calculator estimates total used car cost over a specific ownership period (for example, 36 months). First, we add purchase-related costs. In many states, trade-in value can reduce the taxable purchase amount, so there’s a toggle to reflect that common rule. Next, if you finance, we estimate your monthly payment and the interest you pay during the ownership period (even if your loan term is longer than your ownership period). Then we add running costs based on your mileage, MPG, and fuel price, plus insurance and maintenance assumptions. Finally, we subtract the resale value at the end of the period, because selling the vehicle returns money to you.

How to interpret results: Total cost is your estimated out-of-pocket cost (net of resale). Cost per month helps you see what the car “really costs” in your budget each month. Cost per mile is useful when comparing cars with different fuel economy or repair risk. The breakdown table and donut chart show which category dominates your cost. For many drivers, depreciation/resale and financing interest can be as important as fuel. Use the cumulative cost chart to see how total cost grows month by month.

FAQ

Is this the same as “total cost of ownership” (TCO)?

It’s a practical TCO estimate for a used car over a chosen period. We include purchase costs, loan interest, fuel, insurance, maintenance, repairs, and we subtract expected resale value. Taxes and rules vary by location, so treat this as a planning model.

Why do you subtract resale value?

Because selling the car returns money to you and offsets what you paid. If you keep the car longer, resale might be lower, but you also spread costs over more months — that’s why choosing the right ownership period matters.

What if I sell the car before the loan is paid off?

The calculator estimates interest paid during the ownership period. In real life, you’d pay off the remaining loan balance from the sale proceeds. If the car is worth less than the balance, that gap increases your out-of-pocket cost.

How do I pick a good resale estimate?

Use a conservative assumption. If you’re unsure, start with a lower resale % and compare scenarios. Cars with strong resale can be cheaper to own even if they have a higher purchase price.