Square Footage Formula:
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Square footage calculation is a method to determine the area of a space in square feet. This calculator specifically converts measurements from inches to square feet using the standard conversion formula.
The calculator uses the square footage 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 square footage calculation is essential for various applications including construction, flooring installation, painting estimates, real estate valuation, and material ordering.
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 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 calculator is designed for rectangular or square areas only. For irregular shapes, you would need to break the area into smaller rectangles.
Q3: How accurate is this calculation?
A: The calculation is mathematically precise. The accuracy of your result depends on the precision of your measurements.
Q4: What if I have measurements in feet and inches?
A: Convert all measurements to inches first (1 foot = 12 inches), then use the calculator.
Q5: Can this be used for three-dimensional calculations?
A: No, this calculator is for two-dimensional area calculations only. For volume, you would need to incorporate height/depth measurements.