.square-feet-calculator-wrapper {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e0e0e0;
border-radius: 10px;
background-color: #f9f9f9;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.square-feet-calculator-wrapper h2 {
text-align: center;
color: #333;
margin-bottom: 25px;
font-size: 26px;
}
.square-feet-calculator-wrapper .input-group {
margin-bottom: 18px;
display: flex;
flex-direction: column;
}
.square-feet-calculator-wrapper label {
margin-bottom: 8px;
color: #555;
font-size: 16px;
font-weight: bold;
}
.square-feet-calculator-wrapper input[type="number"] {
width: calc(100% – 20px);
padding: 12px;
border: 1px solid #ccc;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
transition: border-color 0.3s ease;
}
.square-feet-calculator-wrapper input[type="number"]:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}
.square-feet-calculator-wrapper button {
display: block;
width: 100%;
padding: 14px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 6px;
font-size: 18px;
cursor: pointer;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 20px;
}
.square-feet-calculator-wrapper button:hover {
background-color: #0056b3;
transform: translateY(-2px);
}
.square-feet-calculator-wrapper button:active {
transform: translateY(0);
}
.square-feet-calculator-wrapper .result-container {
margin-top: 30px;
padding: 15px;
border: 1px solid #d4edda;
background-color: #e9f7ef;
border-radius: 8px;
text-align: center;
font-size: 20px;
color: #155724;
font-weight: bold;
min-height: 50px;
display: flex;
align-items: center;
justify-content: center;
}
.square-feet-calculator-wrapper .result-container h3 {
margin: 0;
color: #155724;
}
.square-feet-calculator-wrapper .error-message {
color: #dc3545;
font-size: 15px;
margin-top: 10px;
}
function calculateSquareFeet() {
var lengthInput = document.getElementById('lengthFeet');
var widthInput = document.getElementById('widthFeet');
var resultDiv = document.getElementById('squareFeetResult');
var length = parseFloat(lengthInput.value);
var width = parseFloat(widthInput.value);
if (isNaN(length) || isNaN(width) || length <= 0 || width <= 0) {
resultDiv.innerHTML = '
Square Feet Calculator
Enter dimensions above to calculate.
Please enter valid positive numbers for both length and width.
'; return; } var squareFeet = length * width; resultDiv.innerHTML = 'Total Square Feet: ' + squareFeet.toFixed(2) + ' sq ft
'; }Understanding Square Feet
A square foot (sq ft) is a standard unit of area used in the United States, Canada, and the United Kingdom. It represents the area of a square with sides one foot in length. This measurement is fundamental for various applications, from real estate to home improvement projects.
Why is Calculating Square Feet Important?
- Real Estate: The total square footage of a home or property is a primary factor in its valuation and listing price.
- Flooring: When purchasing carpet, hardwood, tile, or laminate, you'll need to know the square footage of the room to buy the correct amount of material.
- Painting: Estimating the amount of paint needed for walls and ceilings often requires calculating the surface area in square feet.
- Landscaping: For projects like laying sod, spreading mulch, or planting, knowing the square footage of your garden beds or lawn area is crucial.
- Construction & Renovation: From framing to insulation, many building materials are sold or estimated based on square footage.
How to Measure for Square Feet
For a simple rectangular or square room, the process is straightforward:
- Measure the Length: Use a tape measure to find the length of the room from one wall to the opposite wall. Record this measurement in feet. If you have inches, divide the inches by 12 and add to the feet (e.g., 10 feet 6 inches is 10.5 feet).
- Measure the Width: Similarly, measure the width of the room from one wall to the opposite wall. Record this in feet.
- Multiply: Multiply the length by the width. The result is the area in square feet.
For irregularly shaped rooms, you can often break the area down into several smaller rectangles or squares, calculate the square footage of each section, and then add them together.
Example Calculation
Let's say you have a living room that is 15 feet long and 10 feet wide. Using the calculator above:
- Length: 15 feet
- Width: 10 feet
- Square Feet = 15 feet * 10 feet = 150 sq ft
If you were planning to install new flooring, you would need approximately 150 square feet of material, often with a little extra for waste.