Fedex Shipping Weight Calculator

FedEx Shipping Cost Calculator: Estimate Your FedEx Package Rates :root { –primary-color: #004a99; –secondary-color: #e0e0e0; –success-color: #28a745; –text-color: #333; –light-bg: #f8f9fa; –white: #fff; –error-color: #dc3545; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–light-bg); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 960px; margin: 30px auto; padding: 25px; background-color: var(–white); border-radius: 8px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); display: flex; flex-direction: column; align-items: center; } header { text-align: center; margin-bottom: 30px; width: 100%; } h1 { color: var(–primary-color); font-size: 2.5em; margin-bottom: 10px; } h2, h3 { color: var(–primary-color); margin-top: 25px; margin-bottom: 15px; } .calculator-section { width: 100%; background-color: var(–white); padding: 30px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05); margin-bottom: 30px; 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FedEx Shipping Cost Calculator

Estimate your FedEx shipping costs accurately and quickly.

Enter the actual weight of your package in kilograms (kg).
Enter the longest dimension of your package in centimeters (cm).
Enter the second longest dimension of your package in centimeters (cm).
Enter the shortest dimension of your package in centimeters (cm).
FedEx Express Saver FedEx 2Day FedEx Overnight FedEx Ground Select the FedEx service level. Higher speed generally means higher cost.
Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Select the distance zone for your shipment (determines base rate factor).
Current estimated fuel surcharge percentage. Check FedEx for latest rates.
Formula Explanation: Estimated Cost = (Chargeable Weight * Base Rate Factor * Distance Zone Factor) * (1 + Fuel Surcharge %) + Other Fees.
Please enter your package details and click "Calculate Cost".

Shipping Rate Factors by Zone

Zone Base Rate Factor ($/kg)
Zone 21.20
Zone 31.60
Zone 42.00
Zone 52.50
Zone 63.00
Zone 73.50
Zone 84.00
Approximate base rate factors for FedEx shipments. These are illustrative and can vary.

Estimated Cost vs. Weight

Illustrative comparison of estimated shipping cost across different package weights.

What is a FedEx Shipping Cost Calculator?

{primary_keyword} is a valuable online tool designed to help individuals and businesses estimate the potential cost of sending packages using FedEx services. It takes into account various factors that influence shipping prices, such as the weight and dimensions of the package, the destination (domestic or international), the chosen shipping speed or service level, and current surcharges. By inputting these details, users can get a near real-time quote, enabling them to budget effectively for their shipping needs, compare options, and make informed decisions about their logistics. It simplifies the often complex pricing structure of courier services, making shipping more transparent and manageable.

Who Should Use It:

  • E-commerce Businesses: To accurately quote shipping costs to customers, manage fulfillment expenses, and optimize shipping strategies.
  • Small Business Owners: For regular shipments of goods or documents, to control operational costs and ensure competitive pricing.
  • Individuals: When sending packages to friends, family, or for personal reasons, to avoid unexpected charges and find the most economical option.
  • Logistics Managers: To perform quick cost analyses, compare different service levels, and plan shipping budgets.

Common Misconceptions:

  • "It's always the cheapest option": While FedEx offers competitive rates, other carriers or specific service levels might be more cost-effective depending on the package specifics and destination. This calculator helps compare.
  • "The weight is the only factor": Dimensional weight (DIM weight) is crucial. A large, light package can be charged based on its volume rather than its actual weight, significantly impacting the cost.
  • "Surcharges are fixed": Fuel surcharges fluctuate based on market conditions. Other surcharges (residential delivery, remote area delivery) can also apply and may not be immediately obvious.

{primary_keyword} Formula and Mathematical Explanation

The cost of shipping with FedEx is determined by a combination of factors, primarily the chargeable weight and the service level, influenced by the distance and dimensional factors. The fundamental calculation involves determining which weight is greater – the actual physical weight or the dimensional weight. This greater weight is then used as the basis for calculating the cost according to the selected service and destination zone.

The core formula can be expressed as:

Estimated Shipping Cost = (Chargeable Weight * Base Rate Factor * Distance Zone Factor) * (1 + Fuel Surcharge %) + Other Fees

Let's break down the components:

  • Actual Weight (W_actual): The physical weight of the package measured on a scale.
  • Dimensional Weight (W_dim): Calculated based on the package's volume. The formula often used by carriers like FedEx is: (Length * Width * Height) / Divisor. The divisor varies but is commonly 5000 (for cm/kg) or 139 (for inches/lbs).
  • Chargeable Weight (W_chargeable): This is the greater of the Actual Weight or the Dimensional Weight. W_chargeable = max(W_actual, W_dim).
  • Base Rate Factor: A cost per kilogram determined by the selected FedEx service (e.g., FedEx Express Saver, FedEx Ground).
  • Distance Zone Factor: FedEx categorizes destinations into zones (e.g., Zone 2, Zone 8) based on the distance from the origin. Each zone has a corresponding multiplier that increases the base rate.
  • Fuel Surcharge: A variable percentage added to the base transportation charges, reflecting current fuel price fluctuations. This percentage changes regularly.
  • Other Fees: Additional charges that may apply, such as residential delivery fees, oversized package fees, Saturday delivery fees, or special handling fees. For simplicity, this calculator often includes a placeholder or assumes standard fees.

Variable Breakdown Table:

Variable Meaning Unit Typical Range / Notes
Package Weight (Actual) Physical weight of the package. kg 0.1 kg to 150 kg (for standard shipments)
Package Length Longest dimension of the package. cm 1 cm to 274 cm
Package Width Second longest dimension. cm 1 cm to 170 cm
Package Height Shortest dimension. cm 1 cm to 152 cm
Dimensional Weight Divisor Factor used in DIM weight calculation. N/A Commonly 5000 for cm/kg.
Chargeable Weight The greater of actual or dimensional weight. kg Varies based on input.
Service Type Rate Base cost per kg for the chosen service. $/kg Variable (e.g., 0.8 to 4.0 based on service speed)
Distance Zone Factor Multiplier based on shipping distance. N/A Typically 1 to ~8 (higher for further zones)
Fuel Surcharge Percentage added due to fuel costs. % Variable, e.g., 10% – 30%
Other Fees Additional charges (residential, etc.). $ Variable, can be $0 to $50+

Practical Examples (Real-World Use Cases)

Let's illustrate with practical scenarios using the {primary_keyword}:

Example 1: Shipping an E-commerce Product

An online retailer is shipping a lightweight but bulky item – a set of decorative pillows – to a customer in a different state.

  • Package Details:
    • Actual Weight: 3 kg
    • Dimensions: 40 cm (Length) x 30 cm (Width) x 25 cm (Height)
    • Service Type: FedEx Ground (Rate: $0.8 /kg)
    • Destination: Zone 5 (Distance Factor: 3)
    • Fuel Surcharge: 18%
    • Other Fees: $0 (Standard delivery)
  • Calculator Inputs:
    • Package Weight: 3 kg
    • Package Length: 40 cm
    • Package Width: 30 cm
    • Package Height: 25 cm
    • Service Type: FedEx Ground (selected from dropdown)
    • Distance Zone: Zone 5 (selected from dropdown)
    • Fuel Surcharge: 18%
  • Calculation Steps:
    • Dimensional Weight: (40 * 30 * 25) / 5000 = 30000 / 5000 = 6 kg
    • Chargeable Weight: max(3 kg, 6 kg) = 6 kg
    • Base Rate: 6 kg * $0.8/kg = $4.8
    • Zone Multiplier Effect: Base Rate * Distance Factor = $4.8 * 3 = $14.4
    • Fuel Surcharge Amount: $14.4 * 18% = $2.59
    • Estimated Cost: $14.4 + $2.59 = $16.99
  • Result Interpretation: Even though the pillows weigh only 3 kg, their bulkiness results in a dimensional weight of 6 kg. The total estimated shipping cost is approximately $16.99, reflecting the chargeable weight, the distance, and the fuel surcharge. The retailer would use this figure when setting shipping prices for their customers.

Example 2: Sending Documents via Express Service

A business needs to send important legal documents overnight to a client.

  • Package Details:
    • Actual Weight: 0.5 kg
    • Dimensions: 30 cm (Length) x 22 cm (Width) x 3 cm (Height)
    • Service Type: FedEx Overnight (Rate: $4.0 /kg)
    • Destination: Zone 3 (Distance Factor: 2)
    • Fuel Surcharge: 18%
    • Other Fees: $0 (Standard business delivery)
  • Calculator Inputs:
    • Package Weight: 0.5 kg
    • Package Length: 30 cm
    • Package Width: 22 cm
    • Package Height: 3 cm
    • Service Type: FedEx Overnight
    • Distance Zone: Zone 3
    • Fuel Surcharge: 18%
  • Calculation Steps:
    • Dimensional Weight: (30 * 22 * 3) / 5000 = 1980 / 5000 = 0.396 kg
    • Chargeable Weight: max(0.5 kg, 0.396 kg) = 0.5 kg
    • Base Rate: 0.5 kg * $4.0/kg = $2.0
    • Zone Multiplier Effect: Base Rate * Distance Factor = $2.0 * 2 = $4.0
    • Fuel Surcharge Amount: $4.0 * 18% = $0.72
    • Estimated Cost: $4.0 + $0.72 = $4.72
  • Result Interpretation: The documents are very light, and their dimensions do not significantly increase their chargeable weight beyond the actual weight. The overnight service is premium, reflected in the higher rate per kg. The total estimated cost is approximately $4.72. This example highlights how express services carry a higher per-kilogram rate, but low weights keep the overall cost manageable for urgent, lightweight shipments.

How to Use This {primary_keyword} Calculator

Our {primary_keyword} is designed for simplicity and speed. Follow these steps to get your estimated FedEx shipping cost:

  1. Enter Package Weight: Input the actual weight of your package in kilograms (kg) into the 'Package Weight' field.
  2. Input Package Dimensions: Accurately measure your package's Length, Width, and Height in centimeters (cm) and enter them into the respective fields. Remember, Length is the longest side, Width is the medium, and Height is the shortest.
  3. Select Service Type: Choose the FedEx service that best fits your needs from the 'Service Type' dropdown. Options range from faster, more expensive express services to slower, more economical ground options.
  4. Specify Distance Zone: Select the appropriate 'Distance Zone' based on the destination of your shipment. These zones generally correspond to shipping distances.
  5. Enter Fuel Surcharge (%): Input the current fuel surcharge percentage provided by FedEx. This value can fluctuate, so it's good practice to check the latest rates on the FedEx website.
  6. Click 'Calculate Cost': Once all details are entered, click the 'Calculate Cost' button.

How to Read Results:

  • Primary Result (Estimated Cost): This is the most prominent figure, showing the total estimated shipping cost in USD.
  • Intermediate Values:
    • Dimensional Weight: Shows the weight calculated based on package volume.
    • Chargeable Weight: Indicates whether the cost is based on actual or dimensional weight.
    • Base Rate: The cost derived from the chargeable weight and the service's per-kilogram rate.
    • Fuel Surcharge Amount: The calculated dollar amount added due to the fuel surcharge percentage.
    • Other Fees: A placeholder for potential additional charges (though often assumed $0 in basic calculators).
  • Formula Explanation: A brief description of how the estimated cost was derived.
  • Table & Chart: Visual aids that provide context, such as typical rate factors per zone and how cost scales with weight.

Decision-Making Guidance: Use the estimated cost to compare different service levels. If the cost seems high, consider if a slower service or different packaging could reduce the chargeable weight or base rate. For businesses, this tool is vital for setting accurate customer shipping charges and managing logistics budgets effectively. Remember that the calculator provides an estimate; the final price may vary slightly based on exact carrier calculations and any applicable ancillary fees.

Key Factors That Affect FedEx Shipping Cost Results

Several elements interact to determine your final FedEx shipping cost. Understanding these can help you optimize your shipments:

  1. Actual Package Weight: The most straightforward factor. Heavier packages naturally incur higher shipping costs due to increased fuel consumption and handling requirements.
  2. Package Dimensions (Dimensional Weight): This is critical for bulky, lightweight items. FedEx (like most carriers) uses a dimensional weight calculation (Length x Width x Height / Divisor). If the DIM weight is greater than the actual weight, you'll be charged based on the DIM weight. Optimizing packaging to reduce volume is key.
  3. Service Level/Speed: Express services (like FedEx First Overnight, Priority Overnight) are significantly more expensive than standard services (like FedEx Ground) because they involve faster transit times, more complex logistics, and guaranteed delivery commitments. Choosing the right speed for the need is a major cost-saving decision.
  4. Distance and Destination Zone: Shipping costs increase with distance. FedEx divides regions into zones, with longer distances falling into higher-numbered zones that carry higher base rates. International shipments also have complex zone structures and potentially higher costs due to customs and longer transit.
  5. Fuel Surcharges: These are variable percentages added to the base transportation charges. They fluctuate weekly based on average national diesel prices. A 15% surcharge can add substantially to the total bill, so monitoring these rates is important.
  6. Additional Services and Surcharges: FedEx applies extra fees for various services:
    • Residential Surcharge: Deliveries to homes often cost more than business deliveries.
    • Delivery Area Surcharge: Shipments to remote or less-accessible areas may incur higher fees.
    • Oversize Package Surcharge: Packages exceeding certain weight or dimension limits (e.g., over 68 kg or 130 inches in combined length and girth) attract significant penalties.
    • Special Handling: Packages requiring special handling (e.g., non-stackable, limited access) may also be subject to fees.
  7. Declared Value and Insurance: While not directly part of the shipping rate, choosing to declare a higher value for your shipment and purchasing insurance will increase the overall cost but protect against loss or damage.
  8. Time of Shipment and Pickup/Drop-off: While not always a direct cost addition, scheduling pickups can sometimes be more expensive than dropping off packages at a FedEx location. Likewise, last-minute shipments might push you towards more expensive express options.

Frequently Asked Questions (FAQ)

Q1: How accurate is the FedEx shipping cost calculator?

A: This calculator provides a highly accurate estimate based on the inputs provided and typical FedEx pricing structures. However, the final price may vary slightly due to real-time fuel surcharge adjustments, specific dimensional calculations by FedEx, and any additional surcharges not accounted for (like incorrect address details or accessorial fees).

Q2: What is dimensional weight, and why is it important?

A: Dimensional weight (or DIM weight) is a calculation based on a package's volume (Length x Width x Height). Carriers use it because bulky, lightweight items take up significant space on transport vehicles, just like heavy items. If your package's DIM weight is greater than its actual weight, FedEx will charge you based on the DIM weight.

Q3: Does the calculator include all FedEx surcharges?

A: This calculator typically includes the base rate, fuel surcharge, and a placeholder for other fees. It may not account for every possible surcharge like residential delivery, remote area delivery, or specific oversized package fees. Always check FedEx's official rate guide for a comprehensive list.

Q4: Can I calculate international shipping costs with this tool?

A: This specific calculator is primarily designed for domestic (within the US) or simplified international zone estimations. For complex international shipments involving customs duties, taxes, and specific country rates, it's best to use FedEx's official online shipping tools or consult with them directly.

Q5: What happens if I enter incorrect dimensions?

A: Entering incorrect dimensions, especially if they underestimate the package's bulk, can lead to an inaccurate shipping quote. If FedEx later measures the package and finds it significantly larger than declared, they may re-bill your account for the difference, often including an additional fee.

Q6: How often do fuel surcharges change?

A: FedEx typically updates its fuel surcharge percentages weekly, based on the average cost of fuel. The rates are published on the FedEx website and can vary depending on the service type (Express vs. Ground) and destination.

Q7: Is the "Chargeable Weight" always higher than the "Actual Weight"?

A: Not necessarily. Chargeable weight is the *greater* of the actual weight or the dimensional weight. If a package is dense and heavy (like a block of metal), its actual weight will likely be higher than its dimensional weight, and you'll be charged based on the actual weight.

Q8: Can I use this calculator to compare FedEx with other carriers?

A: While this calculator focuses on FedEx, the principles of weight, dimensions, and service speed apply to other carriers like UPS and USPS. You can use the calculated cost as a benchmark when comparing shipping options across different providers, but remember each carrier has its own specific rates and surcharges.

function formatCurrency(amount) { return "$" + amount.toFixed(2); } function calculateDimensionalWeight(length, width, height) { var divisor = 5000; // Standard divisor for cm/kg if (length <= 0 || width <= 0 || height <= 0) { return 0; } var dimWeight = (length * width * height) / divisor; return dimWeight; } function validateInput(id, errorId, min, max) { var input = document.getElementById(id); var errorDiv = document.getElementById(errorId); var value = parseFloat(input.value); var isValid = true; errorDiv.textContent = ""; // Clear previous error if (isNaN(value) || value <= 0) { errorDiv.textContent = "Please enter a positive number."; isValid = false; } else if (min && value max) { errorDiv.textContent = "Value must be no more than " + max + "."; isValid = false; } input.style.borderColor = isValid ? "#ccc" : "var(–error-color)"; return isValid; } function calculateShippingCost() { var weightInput = document.getElementById("packageWeight"); var lengthInput = document.getElementById("packageLength"); var widthInput = document.getElementById("packageWidth"); var heightInput = document.getElementById("packageHeight"); var serviceTypeSelect = document.getElementById("serviceType"); var distanceSelect = document.getElementById("distance"); var fuelSurchargeInput = document.getElementById("fuelSurcharge"); var weightError = document.getElementById("packageWeightError"); var lengthError = document.getElementById("packageLengthError"); var widthError = document.getElementById("packageWidthError"); var heightError = document.getElementById("packageHeightError"); var fuelSurchargeError = document.getElementById("fuelSurchargeError"); var initialMessage = document.getElementById("initialMessage"); var resultDiv = document.getElementById("result"); // Validate inputs var isWeightValid = validateInput("packageWeight", "packageWeightError", 0.1); var isLengthValid = validateInput("packageLength", "packageLengthError", 1); var isWidthValid = validateInput("packageWidth", "packageWidthError", 1); var isHeightValid = validateInput("packageHeight", "packageHeightError", 1); var isFuelSurchargeValid = validateInput("fuelSurcharge", "fuelSurchargeError", 0); if (!isWeightValid || !isLengthValid || !isWidthValid || !isHeightValid || !isFuelSurchargeValid) { resultDiv.style.display = "none"; initialMessage.style.display = "block"; initialMessage.textContent = "Please correct the highlighted errors before calculating."; return; } var actualWeight = parseFloat(weightInput.value); var length = parseFloat(lengthInput.value); var width = parseFloat(widthInput.value); var height = parseFloat(heightInput.value); var serviceRate = parseFloat(serviceTypeSelect.value); var distanceFactor = parseFloat(distanceSelect.value); var fuelSurchargePercent = parseFloat(fuelSurchargeInput.value); var dimensionalWeight = calculateDimensionalWeight(length, width, height); var chargeableWeight = Math.max(actualWeight, dimensionalWeight); // Simplified base rate lookup – assuming dropdown value is the rate factor for simplicity // In a real scenario, you'd use a map or array based on serviceType name AND zone // For this example, we are using a simplified approach: // serviceRate already incorporates the complexity, and distanceFactor is a multiplier on top. // A more accurate model would have a matrix of service rates per zone. // Let's refine: Assume serviceRate is base $/kg and distanceFactor is a multiplier for the zone. var baseRatePerKg = serviceRate; // e.g., 0.8 for Ground, 4.0 for Overnight var zoneMultiplier = distanceFactor; // This is a simplification; FedEx zones have specific multipliers. var baseRate = chargeableWeight * baseRatePerKg; var adjustedBaseRate = baseRate * zoneMultiplier; // This is a very rough zone adjustment var fuelSurchargeAmount = adjustedBaseRate * (fuelSurchargePercent / 100); var estimatedCost = adjustedBaseRate + fuelSurchargeAmount; // Assuming no other fees for this basic calc // Update results display document.getElementById("estimatedCost").textContent = formatCurrency(estimatedCost); document.getElementById("dimensionalWeight").textContent = "Dimensional Weight: " + dimensionalWeight.toFixed(2) + " kg"; document.getElementById("chargeableWeight").textContent = "Chargeable Weight: " + chargeableWeight.toFixed(2) + " kg"; document.getElementById("baseRate").textContent = "Adjusted Base Rate: " + formatCurrency(adjustedBaseRate); document.getElementById("fuelSurchargeAmount").textContent = "Fuel Surcharge (" + fuelSurchargePercent + "%): " + formatCurrency(fuelSurchargeAmount); document.getElementById("otherFees").textContent = "Other Fees: $0.00"; // Placeholder resultDiv.style.display = "block"; initialMessage.style.display = "none"; updateChart(actualWeight, estimatedCost); // Update chart with current result } function resetCalculator() { document.getElementById("packageWeight").value = "5"; document.getElementById("packageLength").value = "30"; document.getElementById("packageWidth").value = "20"; document.getElementById("packageHeight").value = "15"; document.getElementById("serviceType").value = "0.8"; // FedEx Ground default document.getElementById("distance").value = "1"; // Zone 2 default document.getElementById("fuelSurcharge").value = "15"; // Clear errors document.getElementById("packageWeightError").textContent = ""; document.getElementById("packageLengthError").textContent = ""; document.getElementById("packageWidthError").textContent = ""; document.getElementById("packageHeightError").textContent = ""; document.getElementById("fuelSurchargeError").textContent = ""; // Reset input borders document.getElementById("packageWeight").style.borderColor = "#ccc"; document.getElementById("packageLength").style.borderColor = "#ccc"; document.getElementById("packageWidth").style.borderColor = "#ccc"; document.getElementById("packageHeight").style.borderColor = "#ccc"; document.getElementById("fuelSurcharge").style.borderColor = "#ccc"; // Hide results and show initial message document.getElementById("result").style.display = "none"; document.getElementById("initialMessage").style.display = "block"; document.getElementById("initialMessage").textContent = "Please enter your package details and click 'Calculate Cost'."; // Reset chart if (window.costChartInstance) { window.costChartInstance.destroy(); } initChart(); // Re-initialize chart with default state } function copyResults() { var estimatedCost = document.getElementById("estimatedCost").textContent; var dimensionalWeight = document.getElementById("dimensionalWeight").textContent; var chargeableWeight = document.getElementById("chargeableWeight").textContent; var baseRate = document.getElementById("baseRate").textContent; var fuelSurchargeAmount = document.getElementById("fuelSurchargeAmount").textContent; var otherFees = document.getElementById("otherFees").textContent; var fuelSurchargePercent = document.getElementById("fuelSurcharge").value; var serviceType = document.getElementById("serviceType").options[document.getElementById("serviceType").selectedIndex].text; var distanceZone = document.getElementById("distance").options[document.getElementById("distance").selectedIndex].text; var copyText = "FedEx Shipping Cost Estimate:\n\n" + "Estimated Cost: " + estimatedCost + "\n" + dimensionalWeight + "\n" + chargeableWeight + "\n" + baseRate + "\n" + fuelSurchargeAmount + "\n" + otherFees + "\n\n" + "Key Assumptions:\n" + "Service Type: " + serviceType + "\n" + "Distance Zone: " + distanceZone + "\n" + "Fuel Surcharge: " + fuelSurchargePercent + "%\n"; try { navigator.clipboard.writeText(copyText).then(function() { alert("Results copied to clipboard!"); }, function(err) { console.error("Could not copy text: ", err); // Fallback for older browsers or if permission denied var textArea = document.createElement("textarea"); textArea.value = copyText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.select(); try { document.execCommand('copy'); alert("Results copied to clipboard!"); } catch (e) { alert("Failed to copy. Please copy manually."); } document.body.removeChild(textArea); }); } catch (e) { console.error("Clipboard API not available or failed: ", e); alert("Clipboard API not available. Please copy manually."); } } // Charting Logic using Canvas var costChartInstance = null; // Global variable to hold chart instance function initChart() { var ctx = document.getElementById('costVsWeightChart').getContext('2d'); var weights = [1, 2, 5, 10, 15, 20, 30, 50]; // Sample weights for chart var costs = []; // Calculate estimated costs for sample weights using current settings (or defaults) var currentServiceRate = parseFloat(document.getElementById("serviceType").value); var currentDistanceFactor = parseFloat(document.getElementById("distance").value); var currentFuelSurcharge = parseFloat(document.getElementById("fuelSurcharge").value); for (var i = 0; i < weights.length; i++) { var weight = weights[i]; var dimWeight = calculateDimensionalWeight(weight * 10, weight * 8, weight * 5); // Assume some dimensions for illustration var chargeableWeight = Math.max(weight, dimWeight); var baseRate = chargeableWeight * currentServiceRate; var adjustedBaseRate = baseRate * currentDistanceFactor; var fuelSurchargeAmount = adjustedBaseRate * (currentFuelSurcharge / 100); var estimatedCost = adjustedBaseRate + fuelSurchargeAmount; costs.push(estimatedCost); } costChartInstance = new Chart(ctx, { type: 'line', data: { labels: weights.map(function(w) { return w + ' kg'; }), datasets: [{ label: 'Estimated Cost ($)', data: costs, borderColor: 'var(–primary-color)', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Estimated Shipping Cost ($)' } }, x: { title: { display: true, text: 'Package Weight (kg)' } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += formatCurrency(context.parsed.y); } return label; } } } } } }); } function updateChart(currentWeight, currentCost) { if (!costChartInstance) { initChart(); return; } // Re-calculate costs for all sample weights based on current calculator settings var weights = [1, 2, 5, 10, 15, 20, 30, 50]; var newCosts = []; var currentServiceRate = parseFloat(document.getElementById("serviceType").value); var currentDistanceFactor = parseFloat(document.getElementById("distance").value); var currentFuelSurcharge = parseFloat(document.getElementById("fuelSurcharge").value); for (var i = 0; i < weights.length; i++) { var weight = weights[i]; // Use dimensions roughly proportional to weight for DIM weight illustration var length = weight * 10; var width = weight * 8; var height = weight * 5; var dimWeight = calculateDimensionalWeight(length, width, height); var chargeableWeight = Math.max(weight, dimWeight); var baseRate = chargeableWeight * currentServiceRate; var adjustedBaseRate = baseRate * currentDistanceFactor; var fuelSurchargeAmount = adjustedBaseRate * (currentFuelSurcharge / 100); var estimatedCost = adjustedBaseRate + fuelSurchargeAmount; newCosts.push(estimatedCost); } costChartInstance.data.datasets[0].data = newCosts; costChartInstance.data.labels = weights.map(function(w) { return w + ' kg'; }); costChartInstance.update(); } // Initialize chart on load document.addEventListener('DOMContentLoaded', function() { initChart(); // Add event listeners to inputs to trigger real-time calculation var inputs = document.querySelectorAll('.loan-calc-container input, .loan-calc-container select'); inputs.forEach(function(input) { input.addEventListener('input', function() { // Only calculate if inputs are valid, otherwise show error message var isWeightValid = validateInput("packageWeight", "packageWeightError", 0.1); var isLengthValid = validateInput("packageLength", "packageLengthError", 1); var isWidthValid = validateInput("packageWidth", "packageWidthError", 1); var isHeightValid = validateInput("packageHeight", "packageHeightError", 1); var isFuelSurchargeValid = validateInput("fuelSurcharge", "fuelSurchargeError", 0); if(isWeightValid && isLengthValid && isWidthValid && isHeightValid && isFuelSurchargeValid) { calculateShippingCost(); } else { document.getElementById("result").style.display = "none"; document.getElementById("initialMessage").style.display = "block"; document.getElementById("initialMessage").textContent = "Please correct the highlighted errors before calculating."; } }); }); // Trigger initial calculation if default values are present calculateShippingCost(); }); // Include Chart.js library var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js'; script.onload = function() { // Chart.js loaded, can now initialize }; document.head.appendChild(script);

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