Square Footage Calculator
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
margin: 0;
padding: 20px;
}
.calc-container {
max-width: 800px;
margin: 30px auto;
background-color: #ffffff;
padding: 30px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 74, 153, 0.1);
border: 1px solid #e0e0e0;
}
h1, h2 {
color: #004a99;
text-align: center;
margin-bottom: 20px;
}
.input-group {
margin-bottom: 20px;
display: flex;
flex-wrap: wrap;
align-items: center;
padding: 15px;
border: 1px solid #d1e7fd;
border-radius: 5px;
background-color: #eef7ff;
}
.input-group label {
flex: 1 1 150px; /* Grow, shrink, basis */
margin-right: 15px;
font-weight: 600;
color: #004a99;
text-align: right;
}
.input-group input[type="number"] {
flex: 1 1 200px; /* Grow, shrink, basis */
padding: 10px;
border: 1px solid #ced4da;
border-radius: 4px;
font-size: 1rem;
box-sizing: border-box; /* Include padding and border in the element's total width and height */
}
.input-group input[type="number"]:focus {
outline: none;
border-color: #007bff;
box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}
button {
display: block;
width: 100%;
padding: 12px 20px;
background-color: #28a745;
color: white;
border: none;
border-radius: 5px;
font-size: 1.1rem;
cursor: pointer;
transition: background-color 0.3s ease;
margin-top: 20px;
}
button:hover {
background-color: #218838;
}
.result-container {
margin-top: 30px;
padding: 20px;
background-color: #d4edda; /* Light green background */
border: 1px solid #c3e6cb;
border-radius: 5px;
text-align: center;
}
.result-container h3 {
margin-top: 0;
color: #155724; /* Dark green text */
}
#totalSquareFootage {
font-size: 2.5rem;
font-weight: bold;
color: #28a745; /* Success green */
display: block; /* Ensure it takes its own line */
margin-top: 10px;
}
.article-content {
margin-top: 40px;
padding: 25px;
background-color: #f8f9fa;
border: 1px solid #e0e0e0;
border-radius: 8px;
}
.article-content h2 {
color: #004a99;
text-align: left;
margin-bottom: 15px;
}
.article-content p, .article-content ul {
color: #555;
margin-bottom: 15px;
}
.article-content ul {
list-style-type: disc;
padding-left: 20px;
}
.article-content strong {
color: #004a99;
}
/* Responsive adjustments */
@media (max-width: 600px) {
.input-group {
flex-direction: column;
align-items: stretch;
}
.input-group label {
text-align: left;
margin-right: 0;
margin-bottom: 8px;
}
.input-group input[type="number"] {
width: 100%;
flex-basis: auto;
}
.calc-container {
padding: 20px;
}
}
Square Footage Calculator
Calculate the total square footage for rectangular or square rooms.
Understanding Square Footage and How to Calculate It
Square footage is a fundamental unit of measurement used primarily in real estate, construction, and interior design. It represents the area of a flat surface, such as a room or a building's floor plan, in square feet. Accurately calculating square footage is crucial for various purposes, including:
- Real Estate: Determining property value, comparing listings, and understanding living space.
- Construction & Renovation: Estimating material needs (flooring, paint, drywall), budgeting, and planning layouts.
- Interior Design: Planning furniture placement, calculating rug sizes, and understanding space proportions.
- Home Improvement: Deciding on the right size for appliances or fixtures.
The Math Behind Square Footage
For a standard rectangular or square area, the calculation is straightforward. The formula is derived from the basic geometric principle for finding the area of a rectangle:
Area = Length × Width
In this calculator:
- Length: The measurement of one side of the room or area in feet.
- Width: The measurement of the adjacent side of the room or area in feet.
When you input the length and width in feet, the calculator multiplies these two values to give you the total area in square feet (ft²).
Example Calculation:
Let's say you have a room that measures 15 feet in length and 12 feet in width.
Using the formula:
Area = 15 ft × 12 ft
Area = 180 square feet
This means the room has a total area of 180 square feet. This information would be useful for purchasing flooring, calculating paint needed for the walls (though wall area requires a different calculation involving height), or simply understanding the room's size.
Important Considerations:
- Units: Always ensure your measurements are in the same unit (feet in this case) before calculating.
- Irregular Shapes: For rooms with non-rectangular shapes (e.g., L-shaped, angled walls), you'll need to break them down into smaller rectangular or square sections, calculate the square footage of each section individually, and then sum them up for the total area.
- Accuracy: Measure carefully. Even small inaccuracies can affect material estimations for larger projects.
This calculator simplifies the process for standard rectangular and square areas, providing a quick and reliable way to determine square footage.
function calculateSquareFootage() {
var lengthInput = document.getElementById("length");
var widthInput = document.getElementById("width");
var resultDisplay = document.getElementById("totalSquareFootage");
var length = parseFloat(lengthInput.value);
var width = parseFloat(widthInput.value);
// Clear previous error messages
lengthInput.style.borderColor = "#ced4da";
widthInput.style.borderColor = "#ced4da";
resultDisplay.textContent = "–"; // Reset to default
// Input validation
if (isNaN(length) || length <= 0) {
lengthInput.style.borderColor = "red";
alert("Please enter a valid positive number for Length.");
return;
}
if (isNaN(width) || width <= 0) {
widthInput.style.borderColor = "red";
alert("Please enter a valid positive number for Width.");
return;
}
// Calculation
var totalSquareFootage = length * width;
// Display result
resultDisplay.textContent = totalSquareFootage.toFixed(2) + " sq ft";
}