Automotive
Vehicle Depreciation Calculator
Calculate total value lost, total depreciation percentage, compound annual depreciation rate, and depreciation per kilometer. The value-road visualization connects age and mileage to the observed purchase-to-current value change.
Total value lost-
Total depreciation-
Compound annual depreciation-
Depreciation per kilometer-
Decision view
Vehicle value road
Vehicle value roadPurchase value and current market value are connected across age and mileage without presenting the historical average as a forecast.
Exact scenario comparisonCurrent estimated value changes while all other entered assumptions remain constant.
| Current estimated value | Total value lost | Total depreciation | Compound annual depreciation | Depreciation per kilometer |
|---|
Period-by-period detail
Monthly schedule and annual summary
How to use Vehicle Depreciation Calculator
- Use the actual transaction price or a clearly defined starting value, excluding unrelated financing interest.
- Estimate current market value from comparable trim, condition, mileage, accident history, and transaction type.
- Interpret annual rate and per-kilometer loss as historical averages across the entered period, not causal allocations.
Calculator guide
Understanding Vehicle Depreciation Calculator
Vehicle depreciation is the change between purchase price and current market value, not a fixed schedule. The compound annual rate summarizes that change but does not predict the next year's resale value.
Calculation method
How the calculation works
Compare current value with purchase price and annualize the value ratio over the entered vehicle age. Subtract current value from original purchase price for value loss. Divide loss by purchase price for total depreciation, solve the compound annual change from current divided by purchase raised to one over age, and divide loss by mileage for loss per kilometer.
Valuation
Choose the correct current-value basis
Different transaction channels can produce different defensible values on the same date.
Worked situations
Practical examples
- A vehicle purchased for $48,000 and currently valued at $29,500 has lost $18,500.
- That is 38.54% total depreciation across four years.
- The compound annual decline is about 11.44%, while $0.257/km is only an average over the entered 72,000 km.
Better inputs
Useful tips
- Use wholesale, trade-in, private-party, or retail values consistently when comparing dates.
- Separate depreciation from loan payoff; owing more than current value is a financing position, not additional depreciation.
- Model several future resale values because used-vehicle markets can shift abruptly.
Before relying on the result
Limitations and common mistakes
- Only the starting price, current value, age, and mileage are modeled.
- Trim, options, condition, collision history, maintenance, warranty, geography, fuel type, supply, and market cycles are excluded.
- Per-kilometer depreciation does not prove that each kilometer caused the calculated value loss.
Reference
Key terms
- Current value
- Entered market-value estimate under a chosen transaction basis.
- Total depreciation
- Original price minus current value.
- Compound annual depreciation
- Constant annual percentage decline that reconciles the two entered values over the entered age.
- Negative equity
- Loan balance exceeding current vehicle value; not calculated here.
Important note
Calculated from the entered vehicle and operating values. Actual prices, financing terms, efficiency, maintenance, insurance, taxes, and resale outcomes can differ.
Frequently asked questions
Is the annual rate a forecast?
No. It is the constant historical rate that connects the entered purchase and current values.
Should sales tax and fees be included in purchase price?
Include them only if the analysis intentionally measures total acquisition cash loss; vehicle market depreciation is often based on vehicle price alone.
Why is depreciation per kilometer high for a low-mileage car?
Time, market movement, and the initial new-vehicle value drop are allocated across fewer kilometers.
Does loan interest affect vehicle depreciation?
No. Interest is a financing cost and should be analyzed separately from the asset's market value.