Use this calculator to estimate the amount of carpet, padding, and installation costs for your room. Simply enter your room dimensions, the price per square yard for carpet, padding, and installation, and an optional waste factor.
Estimated Costs
Room Area: 0 sq ft (0 sq yards)
Estimated Carpet Needed: 0 sq yards
Estimated Carpet Cost: $0.00
Estimated Padding Cost: $0.00
Estimated Installation Cost: $0.00
Total Estimated Cost: $0.00
function calculateCarpet() {
var roomLengthFt = parseFloat(document.getElementById('roomLengthFt').value);
var roomWidthFt = parseFloat(document.getElementById('roomWidthFt').value);
var carpetPricePerSqYard = parseFloat(document.getElementById('carpetPricePerSqYard').value);
var paddingPricePerSqYard = parseFloat(document.getElementById('paddingPricePerSqYard').value);
var installationPricePerSqYard = parseFloat(document.getElementById('installationPricePerSqYard').value);
var wasteFactorPercent = parseFloat(document.getElementById('wasteFactorPercent').value);
// Input validation
if (isNaN(roomLengthFt) || roomLengthFt <= 0) {
alert('Please enter a valid room length.');
return;
}
if (isNaN(roomWidthFt) || roomWidthFt <= 0) {
alert('Please enter a valid room width.');
return;
}
if (isNaN(carpetPricePerSqYard) || carpetPricePerSqYard < 0) {
alert('Please enter a valid carpet price per square yard.');
return;
}
if (isNaN(paddingPricePerSqYard) || paddingPricePerSqYard < 0) {
alert('Please enter a valid padding price per square yard.');
return;
}
if (isNaN(installationPricePerSqYard) || installationPricePerSqYard < 0) {
alert('Please enter a valid installation price per square yard.');
return;
}
if (isNaN(wasteFactorPercent) || wasteFactorPercent 100) {
alert('Please enter a valid waste factor percentage (0-100).');
return;
}
// Calculations
var roomAreaSqFt = roomLengthFt * roomWidthFt;
var roomAreaSqYards = roomAreaSqFt / 9; // 1 square yard = 9 square feet
var wasteMultiplier = 1 + (wasteFactorPercent / 100);
var estimatedCarpetSqYards = roomAreaSqYards * wasteMultiplier;
var estimatedCarpetCost = estimatedCarpetSqYards * carpetPricePerSqYard;
var estimatedPaddingCost = roomAreaSqYards * paddingPricePerSqYard; // Padding usually covers exact area
var estimatedInstallationCost = roomAreaSqYards * installationPricePerSqYard; // Installation usually covers exact area
var totalEstimatedCost = estimatedCarpetCost + estimatedPaddingCost + estimatedInstallationCost;
// Display results
document.getElementById('roomAreaSqFt').innerText = roomAreaSqFt.toFixed(2);
document.getElementById('roomAreaSqYards').innerText = roomAreaSqYards.toFixed(2);
document.getElementById('estimatedCarpetSqYards').innerText = estimatedCarpetSqYards.toFixed(2);
document.getElementById('estimatedCarpetCost').innerText = '$' + estimatedCarpetCost.toFixed(2);
document.getElementById('estimatedPaddingCost').innerText = '$' + estimatedPaddingCost.toFixed(2);
document.getElementById('estimatedInstallationCost').innerText = '$' + estimatedInstallationCost.toFixed(2);
document.getElementById('totalEstimatedCost').innerText = '$' + totalEstimatedCost.toFixed(2);
}
// Run calculation on page load with default values
window.onload = calculateCarpet;
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f9f9f9;
padding: 25px;
border-radius: 10px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
max-width: 700px;
margin: 30px auto;
border: 1px solid #e0e0e0;
color: #333;
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.carpet-calculator-container h2 {
text-align: center;
color: #2c3e50;
margin-bottom: 20px;
font-size: 28px;
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.carpet-calculator-container p {
line-height: 1.6;
margin-bottom: 15px;
font-size: 15px;
}
.calculator-form .form-group {
margin-bottom: 18px;
display: flex;
flex-direction: column;
}
.calculator-form label {
font-weight: bold;
margin-bottom: 8px;
color: #555;
font-size: 15px;
}
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width: 100%;
padding: 12px;
border: 1px solid #ccc;
border-radius: 6px;
box-sizing: border-box;
font-size: 16px;
transition: border-color 0.3s ease;
}
.calculator-form input[type="number"]:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}
.calculator-form button {
background-color: #28a745;
color: white;
padding: 14px 25px;
border: none;
border-radius: 6px;
cursor: pointer;
font-size: 18px;
font-weight: bold;
width: 100%;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 20px;
}
.calculator-form button:hover {
background-color: #218838;
transform: translateY(-2px);
}
.calculator-results {
background-color: #e9f7ef;
border: 1px solid #d4edda;
border-radius: 8px;
padding: 20px;
margin-top: 30px;
}
.calculator-results h3 {
color: #28a745;
margin-top: 0;
margin-bottom: 15px;
font-size: 24px;
text-align: center;
}
.calculator-results p {
font-size: 16px;
margin-bottom: 10px;
display: flex;
justify-content: space-between;
padding: 5px 0;
border-bottom: 1px dashed #c3e6cb;
}
.calculator-results p:last-of-type {
border-bottom: none;
}
.calculator-results p span {
font-weight: bold;
color: #000;
}
.calculator-results .total-cost {
font-size: 20px;
font-weight: bold;
color: #007bff;
margin-top: 20px;
padding-top: 15px;
border-top: 2px solid #007bff;
text-align: center;
display: block; /* Override flex for total cost to center text */
}
.calculator-results .total-cost span {
color: #007bff;
font-size: 22px;
}
.help-text {
font-size: 13px;
color: #6c757d;
margin-top: 5px;
margin-bottom: 0;
}
@media (max-width: 600px) {
.carpet-calculator-container {
padding: 15px;
margin: 20px auto;
}
.calculator-form button {
padding: 12px 20px;
font-size: 16px;
}
.calculator-results h3 {
font-size: 20px;
}
.calculator-results p {
font-size: 14px;
}
.calculator-results .total-cost {
font-size: 18px;
}
.calculator-results .total-cost span {
font-size: 20px;
}
}
Understanding Your Carpet Needs and Costs
Carpet is a popular flooring choice, offering warmth, comfort, and sound insulation. However, accurately estimating the amount of carpet and the total cost can be tricky. Our Carpet Calculator simplifies this process, helping you budget effectively for your next flooring project.
How Carpet is Measured and Sold
Carpet is typically manufactured in large rolls, commonly 12 or 15 feet wide. While you might measure your room in square feet, carpet is often sold and priced by the square yard. One square yard is equivalent to 9 square feet. Installers will cut strips from these rolls to fit your room, which can lead to some waste, especially in irregularly shaped rooms.
Key Factors Influencing Carpet Cost
- Room Dimensions: The length and width of your room directly determine the total area to be covered. Our calculator uses these dimensions to calculate the square footage and then converts it to square yards.
- Carpet Price per Square Yard: This is the cost of the carpet material itself. Prices vary widely based on fiber type (nylon, polyester, wool, etc.), pile style (plush, frieze, loop), durability, and brand.
- Padding Price per Square Yard: Carpet padding is essential for comfort, insulation, and extending the life of your carpet. It's usually priced separately and installed beneath the carpet.
- Installation Price per Square Yard: Professional installation ensures your carpet is laid correctly, preventing wrinkles and extending its lifespan. This cost covers labor and any necessary tools or adhesives.
- Waste Factor: It's almost impossible to carpet a room without some material waste due to cuts, seams, and room irregularities. A waste factor (typically 5-15%) is added to the total area to ensure you purchase enough material. For complex rooms, a higher waste factor might be necessary.
Using the Carpet Calculator
To get an accurate estimate, follow these steps:
- Measure Your Room: Carefully measure the longest length and widest width of your room in feet. If your room has alcoves or unusual shapes, measure the largest rectangular area and consult with an installer for precise measurements.
- Enter Prices: Input the price per square yard for the carpet you've chosen, as well as the estimated costs for padding and installation. These prices can be obtained from carpet retailers or installers.
- Adjust Waste Factor: A standard waste factor is around 10%. For very simple, rectangular rooms, you might use 5%. For rooms with many angles, doorways, or closets, consider 15% or more.
- Calculate: Click the "Calculate Carpet Cost" button to see your estimated room area, the total square yards of carpet needed (including waste), and the breakdown of costs for carpet, padding, installation, and the grand total.
Example Calculation:
Let's say you have a room that is 15 feet long and 12 feet wide. You found carpet for $25 per square yard, padding for $5 per square yard, and installation for $8 per square yard. You'll use a 10% waste factor.
- Room Area: 15 ft * 12 ft = 180 sq ft
- Room Area in Sq Yards: 180 sq ft / 9 = 20 sq yards
- Estimated Carpet Needed (with 10% waste): 20 sq yards * 1.10 = 22 sq yards
- Estimated Carpet Cost: 22 sq yards * $25/sq yard = $550.00
- Estimated Padding Cost: 20 sq yards * $5/sq yard = $100.00
- Estimated Installation Cost: 20 sq yards * $8/sq yard = $160.00
- Total Estimated Cost: $550.00 + $100.00 + $160.00 = $810.00
This calculator provides a helpful estimate, but for a precise quote, always consult with a professional carpet retailer or installer who can take exact measurements and account for specific room layouts and carpet patterns.