Square Footage Formula:
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Square footage calculation measures area in square feet, commonly used in construction, real estate, and interior design to quantify space.
The calculator uses the square footage formula:
Where:
Explanation: The formula converts area from square inches to square feet by dividing by 144 (since 1 square foot = 144 square inches).
Details: Accurate square footage calculation is essential for determining material quantities, property valuation, space planning, and compliance with building codes.
Tips: Enter length and width in inches. All values must be valid positive numbers. The calculator will automatically convert to square feet.
Q1: Why divide by 144 in the formula?
A: Because there are 144 square inches in one square foot (12 inches × 12 inches = 144 square inches).
Q2: Can I use this calculator for metric measurements?
A: No, this calculator is specifically designed for inches. For metric measurements, you would need a different conversion factor.
Q3: How accurate is the calculation?
A: The calculation is mathematically precise. Accuracy depends on the precision of your input measurements.
Q4: What if I have measurements in feet instead of inches?
A: If you have measurements in feet, simply multiply length by width without dividing by 144.
Q5: Can this calculate area for irregular shapes?
A: No, this calculator is designed for rectangular areas only. Irregular shapes require more complex calculations.