Square Feet Formula:
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Square feet calculation is used to determine the area of a space in square feet when measurements are taken in inches. This is particularly useful in construction, interior design, and flooring projects.
The calculator uses the formula:
Where:
Explanation: Since 1 square foot equals 144 square inches (12 inches × 12 inches), we divide the product of length and width by 144 to convert from square inches to square feet.
Details: Accurate area calculation is essential for material estimation, cost calculation, space planning, and project budgeting in various industries including construction and interior design.
Tips: Enter length and width measurements in inches. Both values must be positive numbers. The calculator will automatically convert the result to square feet.
Q1: Why divide by 144?
A: Because 1 square foot equals 144 square inches (12 inches × 12 inches), so dividing by 144 converts square inches to square feet.
Q2: Can I use this for irregular shapes?
A: No, this formula only works for rectangular or square areas. For irregular shapes, you would need to break the area into smaller rectangles or use other methods.
Q3: What if my measurements are in feet?
A: If your measurements are already in feet, simply multiply length by width without dividing by 144.
Q4: How accurate is this calculation?
A: The calculation is mathematically precise. Any inaccuracy would come from measurement errors, not the formula itself.
Q5: Can this be used for three-dimensional calculations?
A: No, this formula calculates area (2D). For volume calculations, you would need a third dimension (height/depth).