Area Formula:
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Square feet calculation converts measurements in inches to area in square feet. This is particularly useful in construction, interior design, and various measurement applications where imperial units are used.
The calculator uses the area formula:
Where:
Explanation: The formula multiplies length and width to get square inches, then divides by 144 to convert to square feet.
Details: Accurate area calculation is essential for material estimation, space planning, cost calculation, and project planning in various industries including construction and interior design.
Tips: Enter both length and width measurements in inches. All values must be valid 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 circular areas?
A: No, this calculator is for rectangular areas. For circles, use π × radius² ÷ 144.
Q3: What precision should I use?
A: For most applications, measurements to the nearest 1/8 inch (0.125) provide sufficient accuracy.
Q4: How accurate is this conversion?
A: The conversion is mathematically exact. Accuracy depends on the precision of your input measurements.
Q5: Can I convert square feet back to inches?
A: Yes, multiply square feet by 144 to get square inches.