Car ownership calculator

Car Depreciation Per Mile Calculator

Estimate how your entered vehicle value loss spreads across ownership miles.

Use this calculator

Enter your purchase, expected resale, ownership and mileage assumptions.

What your result means

This spreads entered value loss across ownership miles as an average; real-world depreciation is not necessarily linear.

Worked example

The figures below are illustrative editable assumptions.

Total depreciation
Purchase price − resale value
Total miles
Annual mileage × ownership years

The calculator uses the same method with your inputs.

Formula

Depreciation/mile=Purchase priceResale valueAnnual miles×Years\text{Depreciation/mile}=\frac{\text{Purchase price}-\text{Resale value}}{\text{Annual miles}\times\text{Years}}

Mileage sensitivity

Annual milesDepreciation per mile
LowerHigher for the same value loss
HigherLower for the same value loss

Using the result

Use like-for-like assumptions and update the inputs when your mileage, prices or agreement changes.

This estimate supports planning; it does not replace a quote, agreement or vehicle valuation.

Practical guidance

Compare the result alongside your own mileage and cashflow needs.

Check the underlying agreement or supplier terms before making a decision.

Assumptions and limitations

  • A zero-mile input does not produce a per-mile value.
  • Resale value is an entered estimate.

Helpful questions

What does the Car Depreciation Per Mile Calculator calculate?

It calculates the entered assumptions using the method shown above.

Are example values current prices or quotes?

No. They are illustrative, editable values only.

Can I change the assumptions?

Yes. Use figures that reflect your vehicle, agreement or travel pattern.

Does the result predict the future?

No. Prices, efficiency, values and agreement terms can change.

What is excluded?

Read the assumptions before relying on the estimate for a decision. You can also use the Annual Car Mileage Calculator, Car Running Cost Calculator and Total Cost of Ownership Calculator for related planning inputs.

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