Square Footage Formula:
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Square footage calculation converts measurements in inches to square feet, which is essential for various applications such as flooring, painting, and construction projects where measurements are often taken in inches but materials are sold by square feet.
The calculator uses the formula:
Where:
Explanation: The formula converts the area from square inches to square feet by dividing by 144, since there are 144 square inches in one square foot.
Details: Accurate square footage calculation is crucial for material estimation, cost calculation, and project planning in construction, renovation, and interior design projects.
Tips: Enter length and width measurements in inches. Both values must be positive numbers. The calculator will automatically convert to square feet.
Q1: Why divide by 144?
A: Because 1 square foot equals 12 inches × 12 inches = 144 square inches.
Q2: Can I use this for irregular shapes?
A: No, this calculator is designed for rectangular areas only. For irregular shapes, you need to break them down into smaller rectangles.
Q3: What's the difference between square feet and square inches?
A: Square feet is a larger unit of area measurement. 1 square foot = 144 square inches.
Q4: How accurate should my measurements be?
A: For most projects, measurements to the nearest 1/4 inch are sufficient, but precision work may require more accurate measurements.
Q5: Can I use this calculator for three-dimensional measurements?
A: No, this calculator is specifically for two-dimensional area calculations. For volume, you would need additional measurements.