Copper Weight Calculator Online – Calculate Copper Weight Accurately
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Copper Weight Calculator
Calculation Results
0.00 kg
Volume:
0.00 cm³
Copper Density:
8.96 g/cm³
Total Material Cost (Estimate):
N/A
Formula Used: Weight = Volume × Density. The volume is calculated based on the selected shape and dimensions. Density of copper is approximately 8.96 g/cm³.
Weight vs. Dimension
Chart shows how weight changes with a key dimension (e.g., length for rods) while other dimensions are kept constant.
Copper Density by Grade
| Copper Grade |
Density (g/cm³) |
Density (lb/in³) |
| Pure Copper (99.9%+) |
8.96 |
0.3237 |
| C11000 (ETP) |
8.94 |
0.3230 |
| C10100 (OFHC) |
8.96 |
0.3237 |
| Brass (e.g., C26000 – 70/30) |
8.50 – 8.70 |
0.307 – 0.314 |
| Bronze (e.g., C95400 – Aluminum Bronze) |
7.60 – 8.00 |
0.275 – 0.289 |
What is a Copper Weight Calculator Online?
A copper weight calculator online is a specialized digital tool designed to swiftly and accurately determine the mass or weight of a copper component based on its physical dimensions and the known density of copper. Instead of manual calculations involving complex geometry and unit conversions, users can input specific measurements, and the calculator provides an almost instantaneous weight estimate. This tool is invaluable for professionals in various industries, including manufacturing, engineering, electrical work, plumbing, scrap metal dealing, and procurement. It simplifies the process of material estimation, cost analysis, and inventory management related to copper. Common misconceptions might include assuming all copper has the exact same density or that simple length and width measurements are always sufficient; this calculator accounts for different shapes and standard copper densities.
Who should use a copper weight calculator online? Anyone who needs to quantify the amount of copper they are using or handling. This includes:
- Engineers and Designers: For material specification and structural calculations.
- Fabricators and Manufacturers: For estimating raw material needs and production costs.
- Electricians: For calculating the weight of copper wiring or busbars.
- Plumbers: For estimating the weight of copper pipes.
- Procurement Specialists: For ordering the correct quantities of copper.
- Scrap Metal Dealers/Recyclers: For assessing the value of copper scrap.
- Hobbyists and DIY Enthusiasts: For projects involving copper materials.
The primary function is to convert geometric volume into mass using a density factor. This is crucial because copper is often purchased by weight, and its value fluctuates. Having a reliable copper weight calculator online streamlines these processes, reducing errors and saving time.
The core principle behind any copper weight calculator online is the fundamental physics relationship between mass, volume, and density. The formula is straightforward:
Weight = Volume × Density
Let's break down each component:
Volume Calculation
The first step is to determine the volume of the copper piece. The method for calculating volume depends entirely on the shape of the copper material. Our calculator supports common shapes:
- Rod/Bar (Cylinder): Volume = π × (Diameter/2)² × Length
- Sheet/Plate (Rectangular Prism): Volume = Width × Length × Thickness
- Tube/Pipe (Hollow Cylinder): Volume = π × ((Outer Diameter/2)² – (Inner Diameter/2)²) × Length
- Wire (Thin Cylinder): Volume = π × (Diameter/2)² × Length
- Custom Shape (Cylinder): Volume = π × (Diameter/2)² × Height
The calculator handles unit conversions (mm, cm, inches, meters) internally to ensure consistent calculations, typically outputting volume in cubic centimeters (cm³) as a standard intermediate step before weight calculation.
Density of Copper
The density of copper is a material property that represents its mass per unit volume. Pure copper has a density of approximately 8.96 grams per cubic centimeter (g/cm³). However, copper alloys (like brass and bronze) and different grades of copper can have slightly varying densities. Our calculator uses a standard value (8.96 g/cm³), but it's important to be aware that the exact density can differ based on the specific alloy and purity. The table provided shows densities for various copper grades.
Putting it Together: Weight Calculation
Once the volume is calculated and the density is known, the weight is found by multiplying them:
Weight (in grams) = Volume (in cm³) × Density (in g/cm³)
The result is often then converted to kilograms (divide by 1000) or pounds (multiply by 0.00220462) for more practical usage.
Variables Table for Copper Weight Calculation
Here's a breakdown of the variables involved in using a copper weight calculator online:
| Variable |
Meaning |
Unit |
Typical Range / Values |
| Shape |
The geometric form of the copper component. |
N/A |
Rod, Sheet, Tube, Wire, Cylinder |
| Diameter / Width / Thickness / Length / Height |
Linear dimensions defining the copper piece. |
mm, cm, in, m |
Varies based on application (e.g., 0.1 mm to several meters) |
| Volume |
The amount of space the copper occupies. |
cm³, m³, in³ |
Calculated value based on dimensions. |
| Density |
Mass per unit volume of the copper material. |
g/cm³, lb/in³ |
~8.96 g/cm³ for pure copper; varies for alloys. |
| Weight |
The final calculated mass of the copper. |
g, kg, lb |
Calculated value. |
| Units |
System of measurement for dimensions. |
N/A |
mm, cm, in, m |
Practical Examples (Real-World Use Cases)
Let's illustrate how the copper weight calculator online works with practical scenarios:
Example 1: Calculating Weight of Copper Rod for Busbars
Scenario: An electrical contractor needs to determine the weight of copper rods to be used as busbars in a power distribution panel. Each rod needs to be 20 mm in diameter and 1.5 meters long.
- Shape: Rod
- Diameter: 20 mm
- Length: 1.5 m (which is 150 cm)
- Units: Millimeters (mm) for diameter, Meters (m) for length. The calculator will convert these to a common unit (cm) internally.
- Density (Assumed): 8.96 g/cm³
Calculator Inputs:
- Shape: Rod/Bar
- Diameter: 20
- Length: 150 (after converting 1.5m to cm)
- Units: cm (for calculation consistency)
Calculator Outputs:
- Volume: Approximately 4712.39 cm³
- Weight: Approximately 42.22 kg
Interpretation: The contractor can confidently order approximately 42.22 kg of copper rod for this specific application, aiding in procurement and logistics planning. Knowing the weight is also essential for structural support calculations if many such bars are used.
Example 2: Estimating Weight of Copper Sheet for Art Installation
Scenario: An artist is commissioning a decorative panel made from a copper sheet. The required dimensions are 2 feet by 3 feet, with a thickness of 1/8 inch.
- Shape: Sheet
- Width: 2 feet (24 inches)
- Length: 3 feet (36 inches)
- Thickness: 1/8 inch (0.125 inches)
- Units: Inches (in)
- Density (Assumed): 0.3237 lb/in³ (density in imperial units)
Calculator Inputs:
- Shape: Sheet/Plate
- Width: 24
- Length: 36
- Thickness: 0.125
- Units: in
Calculator Outputs:
- Volume: Approximately 72 cubic inches
- Weight: Approximately 23.27 lbs
Interpretation: The artist or fabricator knows they will be working with a piece of copper weighing around 23.27 pounds. This information is useful for handling, transportation, and potentially calculating the cost of the raw material, contributing to the overall project budget.
How to Use This Copper Weight Calculator Online
Using our copper weight calculator online is designed to be simple and intuitive. Follow these steps:
- Select Copper Shape: From the dropdown menu, choose the shape that best represents your copper component (Rod, Sheet, Tube, Wire, or Custom Cylinder). This selection will dynamically adjust the input fields shown.
- Enter Dimensions: Input the relevant dimensions for the selected shape. For example, for a rod, you'll need Diameter and Length. For a sheet, Width, Length, and Thickness. Ensure you use the correct labels provided (e.g., Outer Diameter vs. Inner Diameter for tubes).
- Choose Units: Select the units (mm, cm, inches, or meters) in which you have measured your dimensions. The calculator will handle the necessary conversions for accurate calculation.
- Review Density: The calculator defaults to a standard copper density (8.96 g/cm³). You can refer to the provided table for densities of different copper grades if your material is an alloy or a specific purer grade. For highly precise calculations, you might need to manually input a specific density if it's known and significantly different.
- Calculate: Click the "Calculate Weight" button.
Reading the Results
The calculator will display:
- Main Result (Highlighted): The calculated weight of the copper, typically in kilograms (kg).
- Volume: The calculated volume of the copper piece in cubic centimeters (cm³).
- Copper Density: The density value used in the calculation (e.g., 8.96 g/cm³).
- Total Material Cost (Estimate): This field requires an additional input for the cost per unit weight of copper (e.g., $/kg). If you input this, it will provide an estimated material cost. (Note: This feature may not be present in all versions but is a valuable addition for financial planning).
- Formula Used: A brief explanation of how the weight was calculated (Weight = Volume × Density).
Decision-Making Guidance
Use the results to make informed decisions:
- Procurement: Order the correct quantity of copper.
- Costing: Estimate material costs for projects.
- Logistics: Plan for transportation and handling based on weight.
- Material Substitution: Compare the weight (and potentially cost) of copper versus alternative materials.
Don't forget to use the "Reset" button to clear all fields and start a new calculation, or the "Copy Results" button to easily transfer the data.
Key Factors That Affect Copper Weight Results
While the basic formula (Weight = Volume × Density) is simple, several factors can influence the final accuracy and interpretation of the results from a copper weight calculator online:
- Accuracy of Dimensions: The most significant factor is the precision of the measurements entered. Slight inaccuracies in length, width, thickness, or diameter can lead to noticeable differences in the calculated volume and, consequently, the weight. Always double-check measurements.
- Material Density Variations: Pure copper has a standard density, but the copper you are using might be an alloy (like brass or bronze) or a specific grade with a slightly different density. Using the correct density value for your specific material is crucial for accurate weight calculation. Our calculator uses a default for pure copper, but checking the table or material specification sheet is recommended.
- Units of Measurement Consistency: Ensure all dimensions are entered in the same unit system (or that the calculator's unit selection is correct). Mixing units (e.g., entering length in meters and width in centimeters without proper conversion) will yield incorrect volume calculations.
- Shape Complexity: The calculator relies on geometric formulas for standard shapes. If your copper component has complex curves, holes, or an irregular shape, the standard formulas may only provide an approximation. For highly complex geometries, more advanced CAD software or specialized calculation methods might be needed.
- Hollow Structures (Tubes/Pipes): For hollow items like tubes, the accuracy of both the outer and inner diameter measurements is critical. A small error in either can significantly impact the calculated wall thickness and thus the final weight.
- Temperature Effects: While typically negligible for most practical purposes, the density of copper does change slightly with temperature. At very high or low temperatures, thermal expansion or contraction could theoretically alter dimensions and density, but this is rarely a factor for standard calculators.
- Purity and Alloying Elements: The presence of alloying elements or impurities can alter the density of copper. For example, adding zinc to create brass reduces its density compared to pure copper. Similarly, tin in bronze also affects density.
- Scrap vs. New Material: The density and consistency of scrap copper might vary more than new, manufactured copper due to contamination, oxidation, or mixed alloys.
Frequently Asked Questions (FAQ)
Q1: What is the standard density of copper used in calculations?
A: The standard density for pure copper is approximately 8.96 grams per cubic centimeter (g/cm³). Our calculator uses this value by default. However, copper alloys like brass and bronze have different densities, as shown in the table.
Q2: Can this calculator determine the weight of copper wire?
A: Yes, the calculator includes a "Wire" option. You will need to input the wire's diameter and total length. Remember to use appropriate units (e.g., mm or cm for diameter, meters for length).
Q3: How accurate is the copper weight calculation?
A: The accuracy depends primarily on the precision of the dimensions you input and the accuracy of the copper's density used. For standard shapes and known densities, the calculation is highly accurate.
Q4: What if my copper piece is not a standard shape?
A: For irregularly shaped copper pieces, you might need to approximate the shape using standard geometric forms or break the piece down into multiple simpler shapes. Alternatively, you can use the "Custom Shape (Cylinder)" input if it reasonably approximates your object, or consult engineering resources for complex volume calculations.
Q5: Does the calculator account for the cost of copper?
A: The calculator primarily focuses on weight. While there's a field for "Total Material Cost (Estimate)," this requires you to input the current price per unit weight of copper. The calculator itself does not fetch real-time market prices.
Q6: What units does the calculator use for the final weight?
A: The primary result is typically displayed in kilograms (kg). Intermediate volume is in cubic centimeters (cm³).
Q7: Can I use this for copper scrap?
A: Yes, you can use it to estimate the weight of copper scrap if you can measure its overall dimensions and approximate its shape. However, density might be less consistent in scrap.
Q8: What is the difference between copper, brass, and bronze in terms of weight?
A: Brass and bronze are copper alloys. Since they contain other metals (like zinc or tin), their density is generally lower than that of pure copper. This means a piece of brass or bronze of the same dimensions will weigh less than an identical piece made of pure copper.
Q9: How do I convert between different units (e.g., inches to cm)?
A: The calculator handles unit selection directly. If you choose 'in' for dimensions, it uses the imperial system. If you choose 'cm' or 'mm', it uses the metric system. Internally, calculations are often standardized to metric (cm) for consistency before final output.
var defaultDensityGPerCm3 = 8.96; // Standard density for pure copper
var defaultCostPerKg = 0; // Default cost to disable cost calculation if not provided
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function setErrorMessage(id, message) {
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function clearErrorMessages() {
var errorElements = document.querySelectorAll('.error-message');
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function validateInput(value, id, min, max, name) {
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setErrorMessage(id, name + ' cannot be empty.');
return false;
}
if (value max) {
setErrorMessage(id, name + ' cannot be greater than ' + max + '.');
return false;
}
return true;
}
function updateCalculator() {
var shape = getSelectedValue('shape');
var inputsToShow = {
rod: ['rodDiameter', 'rodLength'],
sheet: ['sheetWidth', 'sheetLength', 'sheetThickness'],
tube: ['tubeOuterDiameter', 'tubeInnerDiameter', 'tubeLength'],
wire: ['wireDiameter', 'wireLength'],
custom: ['customDiameter', 'customHeight']
};
// Hide all shape-specific inputs first
for (var shapeKey in inputsToShow) {
var inputContainer = document.getElementById(shapeKey + '-inputs');
if (inputContainer) {
inputContainer.style.display = 'none';
}
}
// Show inputs for the selected shape
var currentShapeInputs = inputsToShow[shape];
if (currentShapeInputs) {
var container = document.getElementById(shape + '-inputs');
if (container) {
container.style.display = 'block';
}
}
// Clear previous values and errors when shape changes
var allInputIds = ['rodDiameter', 'rodLength', 'sheetWidth', 'sheetLength', 'sheetThickness', 'tubeOuterDiameter', 'tubeInnerDiameter', 'tubeLength', 'wireDiameter', 'wireLength', 'customDiameter', 'customHeight'];
for (var i = 0; i = outerDiameter) {
setErrorMessage('tubeInnerDiameter', 'Inner diameter must be less than outer diameter.');
validInputs = false;
} else {
var outerRadius = (outerDiameter * factor) / 2;
var innerRadius = (innerDiameter * factor) / 2;
volumeCm3 = Math.PI * (outerRadius * outerRadius – innerRadius * innerRadius) * (length * factor);
}
}
} else if (shape === 'wire') {
diameter = getInputValue('wireDiameter');
length = getInputValue('wireLength'); // Assume length is in meters as per helper text
if (!validateInput(diameter, 'wireDiameter', 0.001, undefined, 'Diameter')) validInputs = false;
// Validate wire length based on helper text (meters)
if (!validateInput(length, 'wireLength', 0.001, undefined, 'Length')) validInputs = false;
if (validInputs) {
// Convert all to cm for volume calculation
var diameterCm = diameter * unitFactors[unit];
var lengthCm = length * unitFactors['m']; // Wire length is usually in meters, convert to cm
var radius = diameterCm / 2;
volumeCm3 = Math.PI * radius * radius * lengthCm;
}
}
var densityResultElement = document.getElementById('densityResult');
var densityGPerCm3 = defaultDensityGPerCm3; // Use default for now
// Try to get density in lb/in^3 if unit is inches for cost calculation
var densityLbPerIn3 = defaultDensityGPerCm3 * 0.0361273; // Approx conversion
if (unit === 'in') {
densityResultElement.textContent = densityLbPerIn3.toFixed(4) + ' lb/in³';
} else {
densityResultElement.textContent = densityGPerCm3.toFixed(2) + ' g/cm³';
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var weightKg = 0;
var weightLb = 0;
if (validInputs && volumeCm3 > 0) {
// Calculate weight in grams first
var weightGrams = volumeCm3 * densityGPerCm3;
weightKg = weightGrams / 1000;
weightLb = weightGrams * 0.00220462; // Convert grams to pounds
// Update main result display (default to kg)
document.getElementById('main-result').textContent = weightKg.toFixed(2) + ' kg';
// Update intermediate results
document.getElementById('volumeResult').textContent = volumeCm3.toFixed(2) + ' cm³';
// Calculate and display cost if possible
var costResultElement = document.getElementById('costResult');
if (defaultCostPerKg > 0) {
var totalCost = weightKg * defaultCostPerKg;
costResultElement.textContent = '$' + totalCost.toFixed(2);
} else {
costResultElement.textContent = 'N/A (Set cost per kg)';
}
// Update chart data
updateChart(shape, diameter, width, length, thickness, outerDiameter, innerDiameter, unit, weightKg, weightLb);
} else {
// Reset results if inputs are invalid or calculation not possible
document.getElementById('main-result').textContent = '0.00 kg';
document.getElementById('volumeResult').textContent = '0.00 cm³';
document.getElementById('costResult').textContent = 'N/A';
// Clear chart if inputs are invalid
if (window.weightChartInstance) {
window.weightChartInstance.data.labels = [];
window.weightChartInstance.data.datasets[0].data = [];
window.weightChartInstance.data.datasets[1].data = [];
window.weightChartInstance.update();
}
}
}
// Charting Logic
var weightChartInstance = null;
var chartCanvas = document.getElementById('weightChart');
function updateChart(shape, diameter, width, length, thickness, outerDiameter, innerDiameter, unit, currentWeightKg, currentWeightLb) {
var labels = [];
var kgData = [];
var lbData = [];
var baseDimensionValue = 10; // Base value for the changing dimension
var step = 0.1; // Increment step
var dimensionUnit = unit; // Unit for labels
var lengthFactor = 1; // Factor to convert units to cm for volume calculation
var unitFactors = { 'mm': 0.1, 'cm': 1, 'in': 2.54, 'm': 100 };
lengthFactor = unitFactors[unit] || 1;
// Determine which dimension to vary and the calculation parameters
var varyingDimensionName = ";
var calculationParams = {};
// Initialize with default values, adjusted by selected units
if (shape === 'rod' || shape === 'custom') {
varyingDimensionName = 'Length';
var baseDiameter = diameter !== null ? diameter : 10; // Use current diameter or default
calculationParams = {
shape: shape,
diameter: baseDiameter,
unit: unit,
densityGPerCm3: defaultDensityGPerCm3
};
} else if (shape === 'sheet') {
varyingDimensionName = 'Length';
calculationParams = {
shape: shape,
width: width !== null ? width : 50,
thickness: thickness !== null ? thickness : 2,
unit: unit,
densityGPerCm3: defaultDensityGPerCm3
};
} else if (shape === 'tube') {
varyingDimensionName = 'Length';
calculationParams = {
shape: shape,
outerDiameter: outerDiameter !== null ? outerDiameter : 20,
innerDiameter: innerDiameter !== null ? innerDiameter : 16,
unit: unit,
densityGPerCm3: defaultDensityGPerCm3
};
} else if (shape === 'wire') {
varyingDimensionName = 'Length (m)'; // Helper text is in meters
calculationParams = {
shape: shape,
diameter: diameter !== null ? diameter : 5,
unit: unit, // Unit for diameter
lengthUnit: 'm', // Special handling for wire length
densityGPerCm3: defaultDensityGPerCm3
};
}
// Generate data points for the chart
for (var i = 0; i 0) {
var weightGrams = tempVolumeCm3 * calculationParams.densityGPerCm3;
tempWeightKg = weightGrams / 1000;
tempWeightLb = weightGrams * 0.00220462;
}
kgData.push(tempWeightKg);
lbData.push(tempWeightLb);
}
// Use current weight as a reference point if available
if(currentWeightKg > 0) {
labels.push('Current (' + currentWeightKg.toFixed(2) + ' kg)');
kgData.push(currentWeightKg);
lbData.push(currentWeightLb);
}
var ctx = chartCanvas.getContext('2d');
if (weightChartInstance) {
weightChartInstance.destroy(); // Destroy previous instance if exists
}
weightChartInstance = new Chart(ctx, {
type: 'bar', // Changed to bar for better visualization of discrete points
data: {
labels: labels,
datasets: [{
label: 'Weight (kg)',
data: kgData,
backgroundColor: 'rgba(0, 74, 153, 0.6)',
borderColor: 'rgba(0, 74, 153, 1)',
borderWidth: 1,
yAxisID: 'y-kg'
}, {
label: 'Weight (lb)',
data: lbData,
backgroundColor: 'rgba(40, 167, 69, 0.6)',
borderColor: 'rgba(40, 167, 69, 1)',
borderWidth: 1,
yAxisID: 'y-lb'
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Copper Weight vs. ' + varyingDimensionName,
font: { size: 16 }
},
tooltip: {
mode: 'index',
intersect: false
}
},
scales: {
x: {
title: { display: true, text: varyingDimensionName },
ticks: { autoSkip: true }
},
y-kg: {
type: 'linear',
position: 'left',
title: { display: true, text: 'Weight (kg)' },
grid: { display: true }
},
y-lb: {
type: 'linear',
position: 'right',
title: { display: true, text: 'Weight (lb)' },
grid: { drawOnChartArea: false } // Only display grid lines for the primary axis
}
}
}
});
}
function resetCalculator() {
document.getElementById('shape').value = 'rod';
document.getElementById('rodDiameter').value = '10';
document.getElementById('rodLength').value = '100';
document.getElementById('sheetWidth').value = '50';
document.getElementById('sheetLength').value = '100';
document.getElementById('sheetThickness').value = '2';
document.getElementById('tubeOuterDiameter').value = '20';
document.getElementById('tubeInnerDiameter').value = '16';
document.getElementById('tubeLength').value = '100';
document.getElementById('wireDiameter').value = '5';
document.getElementById('wireLength').value = '10';
document.getElementById('customDiameter').value = '10';
document.getElementById('customHeight').value = '100';
document.getElementById('unit').value = 'mm';
clearErrorMessages();
updateCalculator(); // Update display and chart based on reset values
}
function copyResults() {
var mainResult = document.getElementById('main-result').textContent;
var volumeResult = document.getElementById('volumeResult').textContent;
var densityResult = document.getElementById('densityResult').textContent;
var costResult = document.getElementById('costResult').textContent;
var shape = getSelectedValue('shape');
var unit = getSelectedValue('unit');
var assumptions = "Assumptions:\n";
assumptions += "- Shape: " + shape.charAt(0).toUpperCase() + shape.slice(1) + "\n";
assumptions += "- Units: " + unit + "\n";
assumptions += "- Copper Density: " + densityResult + "\n";
if(costResult !== 'N/A (Set cost per kg)') {
assumptions += "- Estimated Cost Per KG: " + defaultCostPerKg.toFixed(2) + " (if applicable)\n";
}
var resultText = "Copper Weight Calculation Results:\n\n";
resultText += "Main Result: " + mainResult + "\n";
resultText += "Volume: " + volumeResult + "\n";
resultText += "Cost: " + costResult + "\n\n";
resultText += assumptions;
// Use modern Clipboard API if available, fallback to text area
if (navigator.clipboard && window.isSecureContext) {
navigator.clipboard.writeText(resultText).then(function() {
// Success feedback (optional)
var copyButton = document.querySelector('button.success');
var originalText = copyButton.textContent;
copyButton.textContent = 'Copied!';
setTimeout(function() { copyButton.textContent = originalText; }, 2000);
}).catch(function(err) {
console.error('Could not copy text: ', err);
fallbackCopyTextToClipboard(resultText); // Fallback
});
} else {
fallbackCopyTextToClipboard(resultText); // Fallback for non-HTTPS or older browsers
}
}
function fallbackCopyTextToClipboard(text) {
var textArea = document.createElement("textarea");
textArea.value = text;
textArea.style.position = "fixed"; // Avoid scrolling to bottom
textArea.style.left = "-9999px";
textArea.style.top = "-9999px";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'Copied!' : 'Copy failed';
var copyButton = document.querySelector('button.success');
var originalText = copyButton.textContent;
copyButton.textContent = msg;
setTimeout(function() { copyButton.textContent = originalText; }, 2000);
} catch (err) {
console.error('Fallback: Oops, unable to copy', err);
var copyButton = document.querySelector('button.success');
var originalText = copyButton.textContent;
copyButton.textContent = 'Failed!';
setTimeout(function() { copyButton.textContent = originalText; }, 2000);
}
document.body.removeChild(textArea);
}
// Initialize calculator on page load
window.onload = function() {
updateCalculator();
// Load Chart.js library dynamically if it's not already loaded
if (typeof Chart === 'undefined') {
var script = document.createElement('script');
script.src = 'https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js'; // Use a specific version for stability
script.onload = function() {
console.log('Chart.js loaded.');
updateChart(); // Update chart after Chart.js is loaded
};
script.onerror = function() {
console.error('Failed to load Chart.js library.');
// Optionally display a message to the user
var chartContainer = document.getElementById('chart-section');
if(chartContainer) {
chartContainer.innerHTML = 'Error: Could not load charting library. Chart is unavailable.';
}
};
document.head.appendChild(script);
} else {
updateChart(); // If Chart.js is already loaded
}
};