Carvana Car Value Calculator

Carvana Car Value Calculator – Estimate Your Trade-In Value body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f8f9fa; color: #333; line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 960px; margin: 20px auto; padding: 20px; background-color: #fff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); } header { background-color: #004a99; color: #fff; padding: 20px; text-align: center; border-radius: 8px 8px 0 0; margin-bottom: 20px; } header h1 { margin: 0; font-size: 2.2em; } .loan-calc-container { background-color: #ffffff; padding: 25px; border-radius: 8px; box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05); margin-bottom: 30px; } .input-group { margin-bottom: 20px; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #555; } .input-group input[type="number"], .input-group input[type="text"], .input-group select { width: calc(100% – 20px); padding: 12px 10px; border: 1px solid #ccc; border-radius: 4px; font-size: 1em; box-sizing: border-box; } .input-group input:focus, .input-group select:focus { border-color: #004a99; outline: none; box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #777; margin-top: 5px; display: block; } .input-group .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ } .error-message.visible { display: block; } .button-group { display: flex; justify-content: space-between; margin-top: 25px; } button { padding: 12px 20px; border: none; border-radius: 4px; cursor: pointer; font-size: 1em; font-weight: 600; transition: background-color 0.3s ease, transform 0.2s ease; } button.primary { background-color: #004a99; color: #fff; } button.primary:hover { background-color: #003b7a; transform: translateY(-1px); } button.secondary { background-color: #6c757d; color: #fff; } button.secondary:hover { background-color: #5a6268; transform: translateY(-1px); } #results { background-color: #e9ecef; padding: 20px; border-radius: 4px; margin-top: 25px; text-align: center; min-height: 150px; border: 1px solid #dee2e6; box-shadow: inset 0 1px 5px rgba(0, 0, 0, 0.05); } #results h3 { margin-top: 0; color: #004a99; } .main-result { font-size: 2.5em; font-weight: bold; color: #28a745; margin: 10px 0; padding: 10px; background-color: #fff; border-radius: 4px; display: inline-block; min-width: 150px; /* Ensure it has some width */ } .intermediate-values { display: flex; justify-content: space-around; flex-wrap: wrap; margin-top: 15px; font-size: 0.9em; color: #555; } .intermediate-value { margin: 5px 15px; text-align: center; } .intermediate-value span { display: block; font-weight: bold; font-size: 1.2em; color: #004a99; } .formula-explanation { font-size: 0.9em; color: #666; margin-top: 15px; padding-top: 15px; border-top: 1px dashed #ccc; } .chart-container { margin-top: 30px; padding: 20px; background-color: #f0f0f0; border-radius: 8px; text-align: center; } canvas { max-width: 100%; height: auto; display: inline-block; } caption { font-size: 1.1em; font-weight: bold; margin-bottom: 10px; color: #004a99; text-align: left; } table { width: 100%; border-collapse: collapse; margin-top: 15px; } th, td { padding: 10px; text-align: left; border: 1px solid #ddd; } thead { background-color: #004a99; color: #fff; } tbody tr:nth-child(even) { background-color: #f2f2f2; } .article-section { margin-top: 30px; background-color: #fff; padding: 20px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05); } .article-section h2 { color: #004a99; border-bottom: 2px solid #004a99; padding-bottom: 5px; margin-bottom: 20px; } .article-section h3 { color: #0056b3; margin-top: 25px; margin-bottom: 10px; } .article-section p { margin-bottom: 15px; } .faq-item { margin-bottom: 15px; } .faq-item strong { color: #004a99; display: block; margin-bottom: 5px; } .internal-links ul { list-style: none; padding: 0; } .internal-links li { margin-bottom: 10px; } .internal-links a { color: #004a99; text-decoration: none; font-weight: bold; } .internal-links a:hover { text-decoration: underline; } .internal-links span { display: block; font-size: 0.9em; color: #555; margin-top: 3px; } /* Responsive adjustments */ @media (max-width: 768px) { .container { margin: 10px; padding: 15px; } header h1 { font-size: 1.8em; } .button-group { flex-direction: column; gap: 10px; } button { width: 100%; } .intermediate-values { flex-direction: column; align-items: center; } .intermediate-value { margin-bottom: 15px; } }

Carvana Car Value Calculator

Get an instant, transparent estimate for your car's trade-in value.

Get Your Car's Value

Enter the manufacturing year (e.g., 2018).
Enter the manufacturer (e.g., Toyota, Ford).
Enter the specific model (e.g., Camry, F-150).
Enter the total mileage on the odometer (e.g., 45000).
Excellent Good Fair Poor Select the overall condition of your vehicle.
List notable features like 'Sunroof', 'Navigation', 'Leather Seats'.

Your Estimated Car Value

$20,500
Base Value
Mileage Adjustment
Condition Adjustment
Options Add-on
The car value is determined by a base value adjusted for mileage, condition, and added features. More mileage and lower condition decrease value, while desirable features increase it.

Value vs. Mileage Impact

Estimated vehicle value based on varying mileage for a similar condition car.
Key Factors Influencing Car Value
Factor Description Impact
Age & Mileage Older cars and higher mileage generally depreciate more. Negative
Vehicle Condition Mechanical health, exterior/interior wear, and maintenance history. Significant (Positive/Negative)
Make & Model Reputation for reliability, demand, and market trends. Positive/Negative
Trim & Features Higher trims and desirable options (sunroof, tech) increase value. Positive
Location & Demand Regional market demand can affect pricing. Varies
Accident History Major accidents significantly reduce value. Negative

What is a Carvana Car Value Calculator?

A Carvana car value calculator is an online tool designed to provide you with a real-time, estimated trade-in value for your current vehicle. Carvana, a prominent online car retailer, uses these calculators to offer transparent pricing for cars you might want to sell or trade in towards a purchase. The primary goal is to give potential sellers a quick, no-obligation quote based on specific details about their car. This process bypasses the traditional dealership negotiation and offers a streamlined way to understand your car's market worth in the current automotive landscape.

Who should use it? Anyone looking to sell their car privately, trade it in at a dealership, or simply curious about their vehicle's depreciation. It's particularly useful for those considering selling to an online buyer like Carvana, as it aligns with their direct purchasing model. People who want to understand how factors like mileage, condition, and features impact their car's worth will find this tool invaluable.

Common misconceptions about these calculators include believing the initial estimate is the final, non-negotiable price. While Carvana aims for transparency, the final offer can sometimes differ after a physical inspection. Another misconception is that the calculator considers every possible unique factor; it relies on broad data sets and algorithms, so highly customized vehicles or rare market conditions might not be perfectly reflected. The accuracy of a Carvana car value calculator is dependent on the detailed information provided by the user.

Carvana Car Value Calculator Formula and Mathematical Explanation

The calculation performed by a Carvana car value calculator typically involves a multi-step process that starts with a base value and then applies adjustments. While the exact proprietary algorithms are complex and vary between platforms, a simplified, representative formula can be understood as follows:

Estimated Value = (Base Value) + (Mileage Adjustment) + (Condition Adjustment) + (Options Add-on) – (Deductions for Issues)

Let's break down the variables:

Variable Explanations

Variable Meaning Unit Typical Range
Base Value The estimated market value of the specific make, model, and year of the car assuming average mileage and good condition. This is derived from vast datasets of recent sales and trade-ins. USD ($) $8,000 – $50,000+ (depending on vehicle)
Mileage Adjustment An adjustment factor based on how the car's mileage compares to the average for its age. Higher mileage reduces value, lower mileage increases it. USD ($) -$0.10 to -$0.50 per mile over average; +$0.05 to +$0.20 per mile under average. (Can be a range of hundreds or thousands of dollars).
Condition Adjustment A factor reflecting the vehicle's cosmetic and mechanical state. 'Excellent' adds value, while 'Fair' or 'Poor' subtracts it significantly. USD ($) -$500 to -$5,000+ depending on severity. (Excellent could add $200-$1000).
Options Add-on Additional value attributed to desirable features not standard on the base model (e.g., sunroof, premium audio, navigation, leather seats). USD ($) $50 – $1,500 per feature, capped by market demand.
Deductions for Issues Reductions for known problems like accident history, mechanical faults, significant cosmetic damage (dents, rust), or missing components. USD ($) Variable, can range from $100 to $10,000+ for severe issues.

The core of the Carvana car value calculator lies in how these adjustments are weighted. Algorithms analyze millions of data points to predict how much a specific configuration of mileage, condition, and features will deviate from the norm for a given vehicle type. For example, a 2018 Toyota Camry with 45,000 miles and in good condition might have a base value, but if it has a sunroof and leather seats, its value increases. Conversely, if it had 100,000 miles and needed new tires, its value would decrease substantially.

Practical Examples (Real-World Use Cases)

Example 1: Well-Maintained Sedan

Sarah is looking to sell her 2019 Honda Civic EX. She drives conservatively and keeps meticulous records. The car has 30,000 miles, is in excellent condition, and features the popular sunroof and upgraded infotainment system.

  • Inputs:
  • Vehicle Year: 2019
  • Vehicle Make: Honda
  • Vehicle Model: Civic
  • Mileage: 30,000 miles
  • Condition: Excellent
  • Key Options/Features: Sunroof, Upgraded Infotainment

Calculation Breakdown (Illustrative):

  • Base Value (2019 Civic EX): $18,000
  • Mileage Adjustment (Below average): +$700
  • Condition Adjustment (Excellent): +$800
  • Options Add-on (Sunroof, Infotainment): +$500
  • Deductions for Issues: $0

Estimated Value: $18,000 + $700 + $800 + $500 = $20,000

Interpretation: The calculator provides a strong estimate reflecting the car's low mileage, excellent condition, and desirable features. This value is likely competitive for a private sale or trade-in.

Example 2: High-Mileage SUV

Mark wants to trade in his 2017 Ford Explorer Limited. It's been his family car, and as such, it has accumulated significant mileage and shows some wear and tear. The car has 95,000 miles, is in fair condition, and has standard options for its trim.

  • Inputs:
  • Vehicle Year: 2017
  • Vehicle Make: Ford
  • Vehicle Model: Explorer
  • Mileage: 95,000 miles
  • Condition: Fair
  • Key Options/Features: (None extraordinary)

Calculation Breakdown (Illustrative):

  • Base Value (2017 Explorer Limited): $17,000
  • Mileage Adjustment (Significantly above average): -$3,500
  • Condition Adjustment (Fair – minor scratches, worn interior): -$1,200
  • Options Add-on: $0
  • Deductions for Issues (Slight dent on bumper): -$300

Estimated Value: $17,000 – $3,500 – $1,200 – $300 = $12,000

Interpretation: The calculator estimates a lower value due to the high mileage and fair condition, which are significant depreciating factors for SUVs. The minor dent further reduces the estimate. Mark should expect a value reflecting these drawbacks.

How to Use This Carvana Car Value Calculator

Using our Carvana car value calculator is designed to be straightforward and quick. Follow these steps to get your estimated trade-in value:

  1. Enter Vehicle Year: Input the manufacturing year of your car.
  2. Specify Make and Model: Accurately type in the manufacturer (e.g., "Honda") and the specific model (e.g., "Accord").
  3. Input Mileage: Provide the current odometer reading. Be precise, as mileage significantly impacts value.
  4. Select Condition: Choose the option that best describes your car's overall state: Excellent, Good, Fair, or Poor. Consider mechanical soundness, interior wear, and exterior appearance.
  5. List Key Options/Features: Enter any notable factory-installed options or aftermarket features that add value (e.g., "Sunroof," "Navigation System," "Leather Seats," "Premium Sound"). Separate multiple features with commas.
  6. Calculate Value: Click the "Calculate Value" button.

How to Read Results

Once you click "Calculate Value," the calculator will display:

  • Your Estimated Car Value: This is the primary, highlighted figure representing the approximate trade-in value Carvana might offer. It's displayed prominently in green.
  • Intermediate Values: You'll see breakdowns for:
    • Base Value: The starting point for your car's worth.
    • Mileage Adjustment: How your mileage affects the base value (positive or negative).
    • Condition Adjustment: The impact of your car's condition.
    • Options Add-on: Value added by specific features.
  • Formula Explanation: A brief description of how these components contribute to the final estimate.
  • Table: A summary of factors influencing car value.
  • Chart: A visual representation of value versus mileage.

Decision-Making Guidance

Use the estimated value as a strong baseline for your decision-making process. If the estimated value meets your expectations, you might proceed to get a formal offer from Carvana. If it's lower than anticipated, review the factors influencing the estimate. Are there potential improvements you could make (e.g., minor repairs)? Could you get a better offer by selling privately? Understanding these figures helps you negotiate effectively or decide on the best selling strategy. Remember, this is an estimate; the final offer may vary after an inspection.

Key Factors That Affect Carvana Car Value Results

Several elements significantly influence the value estimate provided by a Carvana car value calculator. Understanding these factors can help you provide accurate inputs and interpret the results correctly:

  1. Vehicle Age and Mileage: This is arguably the most significant factor. Cars depreciate over time, and mileage is a direct indicator of wear and tear. A vehicle with lower mileage for its age is generally worth more than one with higher mileage. The algorithms weigh this heavily, often applying a per-mile adjustment.
  2. Vehicle Condition (Mechanical & Cosmetic): The overall health and appearance of your car are critical. Excellent mechanical condition, a pristine interior, and a flawless exterior (no dents, scratches, or rust) command higher values. Poor condition, including visible damage, worn-out upholstery, or known mechanical issues, will substantially lower the estimate. Regular maintenance history also plays a role.
  3. Make, Model, and Trim Level: Different manufacturers and models have varying reputations for reliability, desirability, and resale value. Luxury brands might start higher but depreciate faster than some economy brands known for longevity. Higher trim levels (e.g., EX-L vs. LX for Honda) come with more features and thus higher base values.
  4. Desirable Options and Features: Factory-installed options like sunroofs, navigation systems, premium audio, advanced driver-assistance systems (ADAS), and leather upholstery can significantly increase a car's perceived value. Aftermarket modifications are sometimes considered, but often only if they are high-quality and widely desirable.
  5. Demand and Market Trends: The current market demand for specific types of vehicles plays a crucial role. For instance, during periods of high gas prices, fuel-efficient cars might see increased demand and higher values, while SUVs might fluctuate more. Regional demand also impacts pricing.
  6. Accident and Damage History: A clean vehicle history report is essential. Cars that have been involved in significant accidents, even if repaired, typically have a reduced value. Frame damage is particularly detrimental. Our calculator implicitly accounts for this through condition and potential deductions.
  7. Title Status: A clean title is standard for the highest valuations. Salvage, rebuilt, or branded titles drastically reduce a vehicle's value and marketability.
  8. Number of Previous Owners: While not always a direct input, a lower number of previous owners can sometimes suggest better care and maintenance, indirectly influencing valuation models.

By understanding these factors, users can provide more accurate inputs to the Carvana car value calculator and better comprehend the resulting estimate.

Frequently Asked Questions (FAQ)

Q: How accurate is the Carvana car value calculator?

A: The calculator provides an estimate based on the data you input and broad market trends. It's a strong starting point, but the final offer after a physical inspection might differ. Carvana's estimates are generally considered competitive and transparent.

Q: Does the calculator account for all possible features?

A: It accounts for commonly sought-after factory options and features you list. Highly specialized aftermarket modifications or rare factory packages might not be perfectly captured. Always list the most significant features.

Q: What if my car has minor cosmetic damage?

A: Minor cosmetic issues (small scratches, dings) are usually factored into the "Condition Adjustment." For significant damage (large dents, rust, cracked windshields), you might need to provide specific input or expect a larger deduction.

Q: How does Carvana determine the final offer?

A: After receiving an online estimate, Carvana may offer an in-person inspection (at your home or an inspection center). They'll assess the car's condition, verify features, check the vehicle history, and provide a firm offer based on their assessment.

Q: Can I get a value for a car with a salvage title?

A: Typically, online calculators like this one are designed for vehicles with clean titles. Cars with salvage or rebuilt titles have significantly different valuation processes and may not yield accurate results here. You'll likely need to contact Carvana directly or explore other options.

Q: Does the calculator factor in geographic location?

A: While not always an explicit input field, Carvana's algorithms consider regional market demand. Your location influences the final offer they are willing to make.

Q: What is the difference between "Good" and "Excellent" condition?

A: "Excellent" implies near-perfect condition: minimal wear, flawless paint, clean interior, no mechanical issues. "Good" means the car is well-maintained but may show minor signs of wear consistent with its age and mileage (e.g., small scratches, slightly worn driver's seat).

Q: How long is the estimated value valid?

A: Estimates from Carvana are usually valid for a limited time, often a few days to a week. Market conditions and vehicle specifics can change, so it's best to act relatively quickly if you receive an offer you like.

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var carBaseValues = { "Toyota Camry": 19000, "Honda Civic": 17500, "Ford Explorer": 22000, "Honda Accord": 18500, "Toyota Corolla": 16000, "Ford F-150": 25000, "Chevrolet Silverado": 24000, "Nissan Altima": 17000, "BMW 3 Series": 30000, "Mercedes-Benz C-Class": 32000 }; var yearAdjustmentFactor = 1.05; // Increase value by 5% per year back from 2020 (simplified) var mileageAdjustmentPerMile = -0.15; // -$0.15 per mile over average var mileageBonusPerMile = 0.10; // +$0.10 per mile under average var averageMileagePerYear = 12000; var conditionMultipliers = { "excellent": 1.10, "good": 1.00, "fair": 0.85, "poor": 0.65 }; var featureValues = { "sunroof": 500, "navigation": 400, "leather seats": 700, "premium audio": 300, "all-wheel drive": 600, "turbocharged engine": 450, "heated seats": 250 }; var currentChart = null; // Variable to hold the chart instance function getBaseValue(make, model) { var key = make + " " + model; if (carBaseValues.hasOwnProperty(key)) { return carBaseValues[key]; } // Fallback for unlisted models – very rough estimate return 15000; } function validateInput(id, value, min, max) { var errorElement = document.getElementById(id + "Error"); errorElement.classList.remove("visible"); var inputElement = document.getElementById(id); if (value === "") { errorElement.textContent = "This field cannot be empty."; errorElement.classList.add("visible"); inputElement.style.borderColor = "#dc3545"; return false; } var numValue = parseFloat(value); if (isNaN(numValue)) { errorElement.textContent = "Please enter a valid number."; errorElement.classList.add("visible"); inputElement.style.borderColor = "#dc3545"; return false; } if (numValue < 0) { errorElement.textContent = "Value cannot be negative."; errorElement.classList.add("visible"); inputElement.style.borderColor = "#dc3545"; return false; } if (min !== undefined && numValue max) { errorElement.textContent = "Value is too high. Maximum is " + max + "."; errorElement.classList.add("visible"); inputElement.style.borderColor = "#dc3545"; return false; } inputElement.style.borderColor = "#ccc"; // Reset border color on success return true; } function calculateCarValue() { // Input values var year = parseInt(document.getElementById("year").value); var make = document.getElementById("make").value.trim(); var model = document.getElementById("model").value.trim(); var mileage = parseInt(document.getElementById("mileage").value); var condition = document.getElementById("condition").value; var optionsText = document.getElementById("options").value.toLowerCase(); // Error handling and validation var errors = false; if (!validateInput("year", year, 1990, new Date().getFullYear() + 1)) errors = true; if (!validateInput("make", make)) errors = true; if (!validateInput("model", model)) errors = true; if (!validateInput("mileage", mileage, 0, 500000)) errors = true; // Max mileage set high if (errors) { document.getElementById("results").style.display = "none"; return; } else { document.getElementById("results").style.display = "block"; } // — Calculations — // 1. Base Value Calculation (simplified, based on model year and make/model) var baseValue = getBaseValue(make, model); var currentYear = new Date().getFullYear(); var yearsDifference = currentYear – year; var adjustedBaseValue = baseValue; // Adjust base value for age (older = less value) for (var i = 0; i 0) { // Higher than average mileage mileageAdjustment = mileageDifference * mileageAdjustmentPerMile; } else { // Lower than average mileage mileageAdjustment = Math.abs(mileageDifference) * mileageBonusPerMile; } // 3. Condition Adjustment var conditionMultiplier = conditionMultipliers[condition] || 1.00; var conditionAdjustment = adjustedBaseValue * (conditionMultiplier – 1); // Difference from base condition (good=1.00) // 4. Options Add-on var optionsAddon = 0; var optionsList = optionsText.split(',').map(function(item) { return item.trim(); }); for (var j = 0; j < optionsList.length; j++) { var option = optionsList[j]; if (featureValues.hasOwnProperty(option)) { optionsAddon += featureValues[option]; } } // Add bonus for specific high-value combinations if desired, e.g., luxury + tech if (make.toLowerCase().includes("bmw") || make.toLowerCase().includes("mercedes-benz")) { if (optionsList.includes("leather seats") && optionsList.includes("navigation")) { optionsAddon += 200; // Small bonus for popular luxury combo } } optionsAddon = Math.min(optionsAddon, 2000); // Cap add-on value // — Final Calculation — var estimatedValue = adjustedBaseValue + mileageAdjustment + conditionAdjustment + optionsAddon; estimatedValue = Math.max(estimatedValue, 500); // Minimum possible offer // — Display Results — document.getElementById("baseValue").textContent = "$" + baseValue.toLocaleString(undefined, { minimumFractionDigits: 0, maximumFractionDigits: 0 }); document.getElementById("mileageAdjustment").textContent = "$" + mileageAdjustment.toLocaleString(undefined, { minimumFractionDigits: 0, maximumFractionDigits: 0 }); document.getElementById("conditionAdjustment").textContent = "$" + conditionAdjustment.toLocaleString(undefined, { minimumFractionDigits: 0, maximumFractionDigits: 0 }); document.getElementById("optionsAddon").textContent = "$" + optionsAddon.toLocaleString(undefined, { minimumFractionDigits: 0, maximumFractionDigits: 0 }); document.getElementById("mainResult").textContent = "$" + estimatedValue.toLocaleString(undefined, { minimumFractionDigits: 0, maximumFractionDigits: 0 }); updateChart(year, mileage, estimatedValue); } function resetForm() { document.getElementById("year").value = "2018"; document.getElementById("make").value = "Toyota"; document.getElementById("model").value = "Camry"; document.getElementById("mileage").value = "45000"; document.getElementById("condition").value = "good"; document.getElementById("options").value = "Sunroof, Navigation, Leather Seats"; // Clear errors var errorElements = document.querySelectorAll(".error-message"); for (var i = 0; i < errorElements.length; i++) { errorElements[i].classList.remove("visible"); errorElements[i].textContent = ""; } var inputElements = document.querySelectorAll(".loan-calc-container input, .loan-calc-container select"); for (var j = 0; j < inputElements.length; j++) { inputElements[j].style.borderColor = "#ccc"; } calculateCarValue(); // Recalculate with default values } function copyResults() { var mainResult = document.getElementById("mainResult").textContent; var baseValue = document.getElementById("baseValue").textContent; var mileageAdj = document.getElementById("mileageAdjustment").textContent; var conditionAdj = document.getElementById("conditionAdjustment").textContent; var optionsAddon = document.getElementById("optionsAddon").textContent; var year = document.getElementById("year").value; var make = document.getElementById("make").value; var model = document.getElementById("model").value; var mileage = document.getElementById("mileage").value; var condition = document.getElementById("condition").value; var options = document.getElementById("options").value; var copyText = "— Car Value Estimate — \n\n"; copyText += "Vehicle: " + year + " " + make + " " + model + "\n"; copyText += "Mileage: " + mileage + "\n"; copyText += "Condition: " + condition + "\n"; copyText += "Features: " + options + "\n\n"; copyText += "Estimated Value: " + mainResult + "\n"; copyText += "Base Value: " + baseValue + "\n"; copyText += "Mileage Adjustment: " + mileageAdj + "\n"; copyText += "Condition Adjustment: " + conditionAdj + "\n"; copyText += "Options Add-on: " + optionsAddon + "\n\n"; copyText += "Formula: Base Value + Mileage Adjustment + Condition Adjustment + Options Add-on."; navigator.clipboard.writeText(copyText).then(function() { // Success feedback (optional) var copyButton = event.target; copyButton.textContent = "Copied!"; setTimeout(function() { copyButton.textContent = "Copy Results"; }, 2000); }, function(err) { console.error("Failed to copy text: ", err); // Failure feedback (optional) var copyButton = event.target; copyButton.textContent = "Copy Failed"; setTimeout(function() { copyButton.textContent = "Copy Results"; }, 2000); }); } function updateChart(year, currentMileage, currentValue) { var ctx = document.getElementById('valueMileageChart').getContext('2d'); // Destroy previous chart instance if it exists if (currentChart) { currentChart.destroy(); } var make = document.getElementById("make").value; var model = document.getElementById("model").value; var condition = document.getElementById("condition").value; var baseVal = getBaseValue(make, model); var yearsDiff = new Date().getFullYear() – year; var mileageData = []; var valueData = []; // Generate data points for the chart var minMileage = Math.max(0, currentMileage – 30000); var maxMileage = currentMileage + 30000; var step = (maxMileage – minMileage) / 10; for (var m = minMileage; m 0) { mileAdj = mileageDiff * mileageAdjustmentPerMile; } else { mileAdj = Math.abs(mileageDiff) * mileageBonusPerMile; } var condAdj = (baseVal * (conditionMultipliers[condition] || 1.00)) – baseVal; // simplified condition adj relative to base var optAddon = 0; // simplified, assuming base options for chart trend // Add some fixed value for options for chart consistency if (document.getElementById("options").value.includes("sunroof")) optAddon += 500; if (document.getElementById("options").value.includes("leather seats")) optAddon += 700; var estimatedVal = baseVal + mileAdj + condAdj + optAddon; estimatedVal = Math.max(estimatedVal, 500); mileageData.push(m.toFixed(0)); valueData.push(estimatedVal.toFixed(0)); } currentChart = new Chart(ctx, { type: 'line', data: { labels: mileageData, datasets: [{ label: 'Estimated Value ($)', data: valueData, borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, title: { display: true, text: 'Estimated Value ($)' } }, x: { title: { display: true, text: 'Mileage' } } }, plugins: { legend: { display: true, position: 'top' }, tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || "; if (label) { label += ': '; } if (context.parsed.y !== null) { label += new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' }).format(context.parsed.y); } return label; } } } } } }); } // Initial calculation on page load document.addEventListener("DOMContentLoaded", function() { calculateCarValue(); // Add event listeners for inputs to trigger recalculation var formInputs = document.querySelectorAll("#carValueForm input, #carValueForm select"); for (var i = 0; i < formInputs.length; i++) { formInputs[i].addEventListener("input", calculateCarValue); } });

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