Home
Back
Square Feet Formula:
| From: | To: |
Square footage is a measurement of area expressed in square feet (sq ft). It represents the total area of a two-dimensional space and is commonly used in real estate, construction, and interior design to quantify the size of rooms, properties, and land.
The calculator uses the simple area formula:
Where:
Explanation: For rectangular or square areas, simply multiply the length by the width to get the total square footage.
Details: Accurate square footage calculation is essential for determining material quantities for flooring, painting, or tiling; estimating construction costs; evaluating property values; and planning space utilization.
Tips: Enter both length and width measurements in feet. Ensure measurements are accurate and in the same unit (feet). The calculator will automatically compute the square footage.
Q1: Can I use this calculator for irregular shapes?
A: This calculator is designed for rectangular areas. For irregular shapes, you may need to break the area into smaller rectangles, calculate each separately, then sum the results.
Q2: How do I convert from other units to square feet?
A: First convert all measurements to feet, then calculate. For example, if you have inches: divide by 12 to convert to feet before calculating.
Q3: What's the difference between linear feet and square feet?
A: Linear feet measure length in one dimension, while square feet measure area in two dimensions (length × width).
Q4: How accurate should my measurements be?
A: For most purposes, measuring to the nearest 1/4 foot (3 inches) is sufficient. For precise work, measure to the nearest inch and convert to decimal feet.
Q5: Can I calculate square footage for a circle?
A: This calculator is for rectangular areas. For circles, use the formula: π × radius² (then convert to square feet if needed).