Enter the car’s price, yearly depreciation rate and years to get its future value — and how much value it loses.
What Is a Car Depreciation Calculator?
A car depreciation calculator applies a yearly loss rate: $30,000 × 0.85^5 = $13,311.16 after 5 years at 15%/year — $16,688.84 lost. New cars lose ~15–20% a year early on (the steepest drop is year one), then the rate flattens. Depreciation is the buyer’s biggest cost in the lease-vs-buy comparison — this tool quantifies it.
How to Use
- Enter the purchase price.
- Enter the yearly depreciation %.
- Enter the years.
- Click “Calculate Value”.
Formula
Future value = price × (1 − rate)^years.
Worked Example
$30,000 at 15%/year for 5 years: 30,000 × 0.85^5 = $13,311.16; value lost $16,688.84.
How It Works, In Plain Words
Depreciation here is a percentage of what is left, not of the original price — and that one detail drives everything. The three inputs are the purchase price, the yearly depreciation rate as a percentage, and the number of years. Each year the car keeps (1 − rate) of its value: at the prefilled 15%, it keeps 0.85. Year one turns $30,000 into 85% of $30,000; year two takes 85% of that smaller figure, and so on. After five years the value is $30,000 × 0.85^5.
That repeated multiplication is the formula: future value = price × (1 − rate)^years. It gives $13,311.16 for the worked example, and the value lost is simply the price minus what remains — $16,688.84. Because each year’s loss is calculated on a shrinking value, the cash losses are biggest early and taper off, even though the percentage stays constant. A single flat rate is a smoothing assumption: the page notes real cars lose ~15–20% a year early on, steepest in year one, then flatten.
Real-World Uses
A buyer weighing new against nearly-new uses this to see what the first owner paid for the privilege: run a car at its early rate and the year-one cliff appears as a cash figure — the discount a second buyer effectively receives. A seller pricing a car after several years uses it as a sanity anchor before checking listings, starting from what they paid and the years owned rather than from hope. Someone comparing lease with buy uses it too, because the value left at the end of the term is central to that comparison — which is why this page pairs with the Lease vs Buy calculator.
Benefits
- Future value and value lost side by side
- Any rate and horizon
- Honest about the year-one cliff
- Pairs with the Lease vs Buy calculator
Features of Our Tool
- Instant results in your browser
- No sign-up, no download, 100% free
- Works on mobile, tablet and desktop
- Clear step-by-step explanation below the tool
- Private — your entries never leave your device
Common Mistakes
- Assuming linear depreciation — it compounds (exponential)
- Using one rate for all cars — luxury cars depreciate faster
- Forgetting mileage and condition adjust the result
Common Mistakes to Avoid
The commonest error is straight-line thinking: knocking 15% of the original price off every year. Depreciation compounds — each year’s percentage applies to the reduced value — so the linear shortcut overstates later losses and even hits zero, which real cars do not. Second, using one rate for every car: the page warns luxury cars depreciate faster, and brand, demand, mileage and condition all move the true figure. Third, treating the output as a valuation: it is a projection from a single assumed rate, not a quote for your specific car. Fourth, forgetting the year-one cliff when budgeting — the steepest drop happens the moment the car leaves the lot, often 15–25%.
FAQ
How much does a car depreciate per year?
~15–20% early on, flattening later — varies by brand and model.
What is $30,000 worth after 5 years at 15%?
$13,311.16.
When is depreciation steepest?
Year one — the drive-off-the-lot drop, often 15–25%.
Which cars hold value best?
Reliable brands with strong demand (Toyotas, Hondas) and limited-production models — check resale data.
How do I reduce depreciation loss?
Buy 2–3 years used, keep mileage low, maintain service records.
Why does depreciation compound instead of falling in a straight line?
Because each year’s loss is a percentage of the car’s current value, not its original price. At 15%, a $30,000 car loses 15% of $30,000 in year one, then 15% of what remains in year two — so the cash loss shrinks each year even though the rate is constant, and the value approaches $13,311.16 after five years rather than dropping by equal steps.
Can I use this calculator for a used car I am buying?
Yes. Enter the price you are paying as the purchase price, choose a yearly rate, and set the years to how long you plan to keep it. The result estimates what it may be worth when you sell — remembering that older cars usually flatten out, so a gentler rate may fit better than the early-years figures.