What depreciation model does this use?

It uses the declining-balance (reducing-balance) method — each year the value drops by a fixed percentage of the previous year's value, which mirrors how most cars lose value fastest early on.

What annual rate should I use?

Many cars lose roughly 15-20% of their value per year, with the first year often steeper. Adjust the rate to match your make, model and mileage expectations.

Is my vehicle or price data uploaded?

No — the calculation runs entirely in your browser and nothing is uploaded.

Car Depreciation Calculator

Project a car's resale value year by year using a declining-balance rate.

Car depreciation calculator

See how a car’s value falls over time. Enter the purchase price, an annual depreciation rate, and the number of years to project.

The calculator uses the declining-balance method — each year takes a fixed percentage off the previous year’s value — and shows the projected resale value, total value lost, and a year-by-year table. Everything runs in your browser, so nothing is uploaded.