Car Wear per Kilometer Calculator
Estimate your car depreciation cost per kilometer using purchase value, current value, and mileage.
Last updated: How it is calculated
Car Wear Inputs
Months owned is worked out from the distance and your annual mileage, so the historical and forecast figures agree. Open more options to set it yourself.
Wear cost per mi
$0.30/ mi
that is $0.18 per kilometre
- Total Depreciation
- $13,000.00
- Estimated Annual Wear Cost
- $3,545.45
- Estimated Monthly Wear Cost
- $295.45
- Driven Miles
- 44,000 mi
Shown in both units because the same figure is searched for either way — per kilometre in Europe, per mile in the US and UK.
Tips for Better Wear Estimates
- •Use realistic current market value, not only insurer or dealer estimates.
- •Recalculate after major mileage changes or yearly valuation updates.
- •Combine wear-per-mi with fuel and parking for true trip pricing.
- •Track separate maintenance costs to complete your full cost-per-mi picture.
How it is calculated
Formula
Value lost per mi = (purchase price − current value) ÷ miles driven Annual figure = value lost per mi × miles per year
Default assumptions
| Assumption | Value | Where it comes from |
|---|---|---|
| Forecast model from 6 months of ownership | depreciation × 12 ÷ months owned | Definition |
You can change every default above.
What this calculator does not account for
- Fuel, electricity, insurance, tax and servicing are excluded — this is depreciation only.
- Today's value is your own estimate; an actual sale can land well above or below it.
- Below 6 months of ownership or 5,000 mi the projection is unstable and is flagged as such.
- With the advanced fields closed, months owned follows from the distance and the annual mileage. Open them to set it yourself and see how far the historical and forecast figures diverge.
- Regional market differences and trim levels are not modelled.
About This Calculator
This car wear per mile calculator estimates depreciation cost per mi using your purchase price, current value, and actual driven mileage. It helps you price trips more realistically and understand hidden vehicle wear costs beyond fuel.
How to Use This Calculator
- 1
Enter the purchase price and your car's current estimated market value
- 2
Add odometer values at purchase and today to calculate driven miles
- 3
Provide your annual mileage and an optional trip distance scenario
- 4
Review depreciation per mi plus annual, monthly, and trip wear costs
Why Use This Calculator
True Cost per Mile
See depreciation per mi so your real driving cost includes wear, not just fuel and parking.
Better Trip Budgeting
Estimate how much value a planned trip consumes and budget transport costs more accurately.
Smarter Ownership Decisions
Track how vehicle value drops with mileage to compare keep-vs-sell scenarios with clearer numbers.
Frequently Asked Questions
A practical method is total depreciation divided by driven miles. Total depreciation is purchase price minus current estimated value. This calculator performs that calculation automatically.
There is no single universal value. It depends on vehicle class, age, market demand, and mileage. Use your own purchase and current value data for a personal estimate.
If you want a realistic all-in driving cost, including wear is reasonable. Many people split only fuel and tolls, but depreciation is still a real ownership cost.
Yes. The method is value-based and works for EVs and combustion cars alike because it uses price loss over mileage, not fuel type.
Updating every few months or after major mileage changes keeps the estimate useful. Use recent market listings or valuation services for better accuracy.
By default, it estimates depreciation only. If you enable the advanced option, you can also include your own maintenance and repair estimate.
Switch the region to United States and every field and result changes to miles. The arithmetic is identical either way, because it is money lost divided by distance covered. If you already have a figure per kilometre, multiply by 1.609344 to get the cost per mile: 0.20 per km is 0.32 per mile.
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Disclaimer: This calculator provides estimates for planning purposes only. Actual costs may vary based on your circumstances, location, and market conditions. Not financial advice. See our Terms of Service for full disclaimers.