Interest Paid Calculator

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Car Depreciation Calculator

Estimate the future resale value of your vehicle and total value lost over time.

Sedan / Hatchback (Average) SUV / Truck (Retains value better) Luxury Vehicle (Depreciates faster) Electric Vehicle (High early depreciation)
Estimated Future Value:
Total Depreciation Loss:
Annual Average Cost:

How Car Depreciation Works

Depreciation is the difference between the amount you spend when you buy a car and the amount you get back when you sell or trade it in. For most people, depreciation is the single largest expense of owning a vehicle, often exceeding the cost of fuel, insurance, or maintenance.

On average, a new car loses approximately 20% of its value in the first year and roughly 15% each year thereafter. By the time a car is five years old, it has typically lost about 60% of its original purchase price.

The Depreciation Formula

This calculator uses the declining balance method to estimate your car's value. The formula applied is:

V = P × (1 – R)n
Where:
V = Future Value
P = Current Purchase Price
R = Annual Depreciation Rate (percentage expressed as a decimal)
n = Number of years

Example Calculation

Imagine you purchase a $40,000 SUV. Since SUVs tend to hold their value slightly better, we use a 12% depreciation rate. If you plan to sell it in 5 years:

  • Year 1: $35,200
  • Year 2: $30,976
  • Year 3: $27,258
  • Year 4: $23,987
  • Year 5: $21,109

In this scenario, your total "cost of ownership" regarding value loss is $18,891, or roughly $3,778 per year.

Tips to Minimize Depreciation

  • Choose "Safe" Colors: Silver, White, and Black cars generally resell faster and for higher prices than bright or unusual colors.
  • Keep Mileage Low: High mileage is the fastest way to tank a car's value. Try to stay under 12,000 miles per year.
  • Detailed Service Records: Buyers pay a premium for cars that have a documented history of oil changes and scheduled maintenance.
  • Buy Used: By purchasing a car that is 2-3 years old, the original owner has already taken the massive "first-year" depreciation hit.
function calculateDepreciation() { var price = parseFloat(document.getElementById('purchasePrice').value); var currentAge = parseFloat(document.getElementById('carAge').value); var yearsToKeep = parseFloat(document.getElementById('ownershipYears').value); var rate = parseFloat(document.getElementById('vehicleType').value); if (isNaN(price) || isNaN(yearsToKeep) || price <= 0) { alert("Please enter valid positive numbers for price and ownership years."); return; } // Calculation logic // We treat the "current age" as the starting point. // If the car is new, currentAge is 0. // Total years from manufacturing = currentAge + yearsToKeep var futureValue = price * Math.pow((1 – rate), yearsToKeep); // Account for the fact that the first year is usually harsher (20% for average) // But for simplicity in a web tool, the exponential decay is more standard. // We will adjust the logic slightly to ensure the result is realistic. var totalLoss = price – futureValue; var annualCost = totalLoss / yearsToKeep; // Formatting currency var formatter = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD', }); document.getElementById('futureValue').innerText = formatter.format(futureValue); document.getElementById('totalLoss').innerText = formatter.format(totalLoss); document.getElementById('annualCost').innerText = formatter.format(annualCost); document.getElementById('result').style.display = 'block'; }

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