Square Feet Formula:
From: | To: |
The square feet calculation converts area measurements from square inches to square feet. This is particularly useful in construction, interior design, and various DIY projects where measurements are often taken in inches but final area is needed in square feet.
The calculator uses the square feet 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 determining material requirements, estimating costs, planning layouts, and ensuring proper fit of items in a given space.
Tips: Enter length and width in inches. Both values must be positive numbers. The calculator will automatically convert the area to square feet.
Q1: Why divide by 144?
A: Because 1 square foot equals 144 square inches (12 inches × 12 inches), so we divide by 144 to convert from square inches to square feet.
Q2: Can I use this for irregular shapes?
A: No, this calculator is designed for rectangular areas only. For irregular shapes, you would need to break the area into rectangular sections and calculate each separately.
Q3: What if I have measurements in feet and inches?
A: Convert all measurements to inches first. For example, 5 feet 6 inches would be (5×12) + 6 = 66 inches.
Q4: How accurate is this calculation?
A: The calculation is mathematically precise. The accuracy of your result depends on the precision of your measurements.
Q5: Can this be used for three-dimensional calculations?
A: No, this calculator is for two-dimensional area only. For volume calculations, you would need to incorporate height/depth measurements.