How to Convert to Square Feet Calculator

Area to Square Feet Converter

Enter values and click 'Convert' to see the result.

function calculateSquareFeet() { var areaValue = parseFloat(document.getElementById('areaValue').value); var originalUnit = document.getElementById('originalUnit').value; var squareFeet = 0; var conversionFactor = 0; if (isNaN(areaValue) || areaValue < 0) { document.getElementById('resultSquareFeet').innerHTML = 'Please enter a valid positive number for the area.'; return; } switch (originalUnit) { case 'acres': conversionFactor = 43560; // 1 acre = 43,560 sq ft break; case 'squareMeters': conversionFactor = 10.7639104167; // 1 sq meter = 10.7639104167 sq ft break; case 'squareYards': conversionFactor = 9; // 1 sq yard = 9 sq ft break; case 'squareMiles': conversionFactor = 27878400; // 1 sq mile = 27,878,400 sq ft break; case 'hectares': conversionFactor = 107639.104167; // 1 hectare = 10,000 sq meters = 107,639.104167 sq ft break; case 'squareKilometers': conversionFactor = 10763910.4167; // 1 sq km = 1,000,000 sq meters = 10,763,910.4167 sq ft break; case 'squareCentimeters': conversionFactor = 0.00107639104167; // 1 sq cm = 0.0001 sq meters = 0.00107639104167 sq ft break; case 'squareInches': conversionFactor = 0.00694444444444; // 1 sq inch = 1/144 sq ft break; default: document.getElementById('resultSquareFeet').innerHTML = 'An unknown unit was selected. Please choose a valid unit.'; return; } squareFeet = areaValue * conversionFactor; document.getElementById('resultSquareFeet').innerHTML = '' + areaValue.toLocaleString() + ' ' + originalUnit.replace(/([A-Z])/g, ' $1').toLowerCase() + ' is approximately ' + squareFeet.toLocaleString(undefined, { maximumFractionDigits: 4 }) + ' square feet.'; }

Understanding and Converting to Square Feet

Square feet (sq ft or ft²) is a standard unit of area measurement primarily used in the United States, Canada, and the United Kingdom for real estate, interior spaces, and land parcels. It represents the area of a square with sides one foot in length. Whether you're buying a home, planning a construction project, or simply trying to understand property dimensions, converting various area units into square feet is a common and essential task.

Why Convert to Square Feet?

Different regions and industries use various units to measure area. For instance, land in agricultural contexts might be measured in acres or hectares, while smaller plots or rooms might be in square meters or square yards. To compare properties, calculate material needs (like flooring or paint), or comply with local regulations, having a consistent unit like square feet is crucial. This calculator simplifies that process, allowing you to quickly convert from a wide range of common area units.

Common Area Units and Their Relationship to Square Feet

• Acres: Often used for larger land areas, especially in agriculture. One acre is equivalent to 43,560 square feet.
• Square Meters (m²): The standard unit of area in the metric system, widely used globally. One square meter is approximately 10.764 square feet.
• Square Yards (yd²): Another imperial unit, often used for smaller land plots or materials like carpet. One square yard equals 9 square feet.
• Square Miles (mi²): Used for very large geographical areas. One square mile is a massive 27,878,400 square feet.
• Hectares (ha): A metric unit for land area, equal to 10,000 square meters. One hectare is approximately 107,639 square feet.
• Square Kilometers (km²): A large metric unit, equal to 1,000,000 square meters. One square kilometer is approximately 10,763,910 square feet.
• Square Centimeters (cm²): A small metric unit, often used for very small surfaces. One square centimeter is approximately 0.001076 square feet.
• Square Inches (in²): A small imperial unit. One square inch is 1/144th of a square foot, or approximately 0.00694 square feet.

How to Use the Calculator

Our "Area to Square Feet Converter" is designed for ease of use:

1. Enter Area Value: Input the numerical value of the area you wish to convert into the "Area Value" field.
2. Select Original Unit: Choose the unit of measurement your original area value is in from the "Original Unit" dropdown menu (e.g., Acres, Square Meters, Hectares).
3. Convert: Click the "Convert to Square Feet" button.
4. View Result: The calculator will instantly display the equivalent area in square feet in the result box.

Examples of Conversions

• Converting Acres: If you have a 5-acre plot, the calculator will show it as 5 × 43,560 = 217,800 square feet.
• Converting Square Meters: A room measuring 30 square meters would convert to approximately 30 × 10.764 = 322.92 square feet.
• Converting Hectares: A 2-hectare field would be approximately 2 × 107,639 = 215,278 square feet.
• Converting Square Inches: A small tile of 144 square inches would convert to 144 × 0.006944 = 1 square foot.

This tool is invaluable for anyone dealing with property, construction, or any field requiring precise area measurements in square feet.