.calc-container {
font-family: -apple-system, BlinkMacSystemFont, “Segoe UI”, Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e1e1e1;
border-radius: 12px;
background-color: #ffffff;
box-shadow: 0 4px 20px rgba(0,0,0,0.08);
color: #333;
}
.calc-header {
text-align: center;
margin-bottom: 25px;
}
.calc-header h2 {
color: #1a73e8;
margin-bottom: 10px;
}
.input-group {
margin-bottom: 18px;
}
.input-group label {
display: block;
font-weight: 600;
margin-bottom: 8px;
font-size: 14px;
}
.input-group input, .input-group select {
width: 100%;
padding: 12px;
border: 2px solid #edeff2;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
transition: border-color 0.3s;
}
.input-group input:focus {
border-color: #1a73e8;
outline: none;
}
.calc-btn {
width: 100%;
background-color: #1a73e8;
color: white;
padding: 15px;
border: none;
border-radius: 6px;
font-size: 18px;
font-weight: 600;
cursor: pointer;
transition: background-color 0.3s;
}
.calc-btn:hover {
background-color: #1557b0;
}
#result-box {
margin-top: 25px;
padding: 20px;
background-color: #f8f9fa;
border-radius: 8px;
display: none;
border-left: 5px solid #1a73e8;
}
.result-item {
display: flex;
justify-content: space-between;
margin-bottom: 10px;
font-size: 16px;
}
.result-value {
font-weight: bold;
color: #1a73e8;
}
.article-section {
margin-top: 40px;
line-height: 1.6;
color: #444;
}
.article-section h2 {
color: #222;
border-bottom: 2px solid #f1f1f1;
padding-bottom: 10px;
}
.article-section h3 {
color: #333;
margin-top: 25px;
}
.example-box {
background-color: #fff9db;
padding: 15px;
border-left: 4px solid #fab005;
margin: 20px 0;
}
Advanced Car Depreciation Calculator
Estimate the current market value of your vehicle based on age, mileage, and condition.
Excellent (Like new)
Good (Minor wear)
Fair (Visible wear/mechanical issues)
Poor (High damage/heavy repairs needed)
$0.00
$0.00
0%
Understanding Car Depreciation: Why Vehicles Lose Value
Depreciation is the difference between the amount you spent when you bought your car and the amount you get back when you sell or trade it in. It is typically the largest “hidden” cost of car ownership, often exceeding fuel, insurance, and maintenance costs combined.
How Car Depreciation Works
As soon as you drive a new car off the dealership lot, it can lose up to 10% to 20% of its value. By the end of the first year, it’s not uncommon for a vehicle to have lost 30% of its original purchase price. After the first year, depreciation typically slows down to roughly 10% to 15% per year.
If you buy a new SUV for $40,000, it might be worth only $32,000 after one year (20% loss). By year five, assuming a standard depreciation curve, it may be worth approximately $16,000, meaning you have “spent” $24,000 just in value loss.
Key Factors That Influence Depreciation
- Mileage: The more you drive, the lower the value. High mileage suggests more wear and tear on the engine and suspension.
- Maintenance History: A vehicle with a documented service history at authorized dealerships usually commands a higher resale price.
- Reliability Reputation: Brands known for longevity (like Toyota or Honda) tend to depreciate much slower than luxury brands with high repair costs.
- Condition: Dents, interior stains, and smoke odors significantly decrease the pool of potential buyers.
- Fuel Economy: In times of high gas prices, fuel-efficient vehicles hold their value better than gas-guzzling trucks or SUVs.
How to Minimize Your Vehicle’s Value Loss
While you cannot stop depreciation, you can mitigate its effects. Consider buying a 2-3 year old used car to let the first owner take the biggest hit. Keep your mileage within the national average (roughly 12,000 to 15,000 miles per year) and ensure you keep all service receipts. Finally, choosing “safe” neutral colors like silver, white, or black can make the car easier to sell later compared to niche colors like bright green or orange.
function calculateDepreciation() {
var price = parseFloat(document.getElementById(“initialPrice”).value);
var age = parseFloat(document.getElementById(“carAge”).value);
var mileage = parseFloat(document.getElementById(“annualMileage”).value);
var conditionFactor = parseFloat(document.getElementById(“carCondition”).value);
if (isNaN(price) || isNaN(age) || isNaN(mileage) || price 12000) {
mileageAdjustment = ((mileage – 12000) / 5000) * 0.01;
} else if (mileage 0) {
// Reward low mileage
mileageAdjustment = -0.01;
}
var effectiveRetentionRate = baseRetentionRate – mileageAdjustment;
// Formula: CurrentValue = Price * (RetentionRate ^ Age)
// Note: Year 1 is usually harsher, but for a general calculator we use a curve
var currentValue = price * Math.pow(effectiveRetentionRate, age);
// Safety check: Car value shouldn’t really go below 5% of its original price in this model
if (currentValue < (price * 0.05)) {
currentValue = price * 0.05;
}
var totalLostValue = price – currentValue;
var percentageRetained = (currentValue / price) * 100;
// Display results
document.getElementById("currentValue").innerText = "$" + currentValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("totalLost").innerText = "$" + totalLostValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("percentRetained").innerText = percentageRetained.toFixed(1) + "%";
document.getElementById("result-box").style.display = "block";
}