Car Depreciation Calculator
Estimate how much your car may lose in value over time. See the estimated future value, total depreciation, depreciation percentage, and a year-by-year value breakdown.
Enter Vehicle Details
Set the vehicle price and your estimated depreciation assumptions.
This calculator uses percentage-based depreciation. Actual resale value may vary based on mileage, condition, make, model, demand, accident history, maintenance, location, and market conditions.
Enter vehicle details, then click Calculate Depreciation to see your results.
How Car Depreciation Works
New vehicles often lose a larger percentage of their value during the first year, followed by slower depreciation in later years. This calculator lets you use a separate first-year depreciation rate and annual rate for the years that follow.
For example, if a $35,000 car loses 20% in the first year, its estimated value becomes $28,000. If it then depreciates by 15% per year, that 15% is applied to the remaining value each year rather than to the original purchase price.
How to Use the Car Depreciation Calculator
Enter the starting vehicle value, whole years to forecast, the percentage loss in the first forecast year, and the annual loss for subsequent years. The percentages are assumptions you choose. The car depreciation calculator does not retrieve a live appraisal or a model-specific market forecast.
Car Depreciation Calculator: 5-Year Worked Example
A $35,000 starting value with a 20% first-year loss becomes $28,000. Applying 15% in the second year loses $4,200, not $5,250, because the percentage applies to $28,000. After five years the estimated value is $14,616.18, using $35,000 × 0.80 × 0.854. The total loss is approximately $20,383.83, or 58.24%. Minor cent differences can appear from display rounding.
Understanding Car Depreciation Calculator Results
Value retained is future value divided by starting value. Total depreciation is starting value minus future value. Average annual depreciation spreads the dollar loss across the forecast years; it does not mean the car loses that same dollar amount every year. The equivalent annual rate is the constant compounded rate that would connect the same starting and ending values, rather than a simple average of the two input rates.
Choose Assumptions for Your Vehicle
Compare vehicles of the same model, trim, approximate mileage, condition, and location at different ages. Separate dealer asking prices from trade-in or private-sale values, since those are different transactions. Test more than one plausible rate and keep the mileage assumptions consistent. The default 20% and 15% values are examples, not universal depreciation statistics.
For a used car, you may start from its current estimated value and forecast forward. In that case, the first-year input means the next forecast year, not necessarily the first year after the vehicle was originally sold new. Do not apply a new-car loss automatically to an older vehicle.
Car Depreciation Calculator FAQs
Is depreciation the same as negative equity?
No. Depreciation measures the change in vehicle value. Equity compares that value with the outstanding loan. For example, a car worth $18,000 with $20,000 owed has $2,000 of negative equity, regardless of its original price. Compare value estimates with the scheduled loan balance and obtain a lender payoff quote before selling.
Does the result include interest or running costs?
No. Loan interest, insurance, fuel, repairs, taxes, and selling expenses are separate. Avoid adding both the entire purchase price and depreciation to an ownership-cost estimate, since depreciation already represents part of that price being lost.
Can I use this as an insurance or tax valuation?
No. It is a scenario calculator, not an appraisal, insurance settlement, or tax depreciation schedule. Those processes can use different evidence and rules.
Read our vehicle depreciation guide and the FTC used-car buying guide for inspection considerations. Actual resale values can differ substantially from the modeled figures.
Compare Three Five-Year Value Scenarios
A single forecast can hide how sensitive the answer is to the annual rate. In the car depreciation calculator, keep the starting value at $35,000, the forecast at five years, and the first-year loss at 20%. Change only the annual loss after year one. These are hypothetical scenarios, not market predictions.
| Annual loss after year one | Estimated value after five years | Total value lost |
|---|---|---|
| 10% | $18,370.80 | $16,629.20 |
| 15% | $14,616.18 | $20,383.83 |
| 20% | $11,468.80 | $23,531.20 |
The difference between the high and low ending values is $6,902. That range may matter more to a sale decision than the cents shown in one forecast. If your assumed loan payoff at that date is $15,000, the high-value case leaves $3,370.80 of positive equity, while the low-value case leaves $3,531.20 of negative equity, before selling expenses. The middle case is approximately $383.83 below that assumed payoff.
Check the Forecast Against a Written Offer
Use the car depreciation calculator as a planning range, then compare it with evidence when a transaction approaches. Record the date, mileage, trim, condition and selling method behind each estimate. A dealer retail listing includes a different transaction margin from a trade-in offer, so comparing the two without adjustment can overstate your expected proceeds.
If a dealer offers $14,000 for a vehicle you modeled at $16,000, ask what explains the $2,000 difference. Mileage, repairs, condition or local demand may be relevant. Obtain another comparable offer where practical. Do not increase the forecast merely to make a purchase appear affordable.
Before accepting a sale, replace the assumed payoff with a dated lender quote and account for any transaction expenses. Keep the vehicle-value forecast, loan balance and cash required to complete the sale as separate figures. They answer different questions.
