1. What is Square Feet Calculation?

Square feet calculation converts area measurements from square inches to square feet. This is particularly useful in construction, interior design, and flooring projects where measurements are often taken in inches but materials are sold by the square foot.

2. How Does the Calculator Work?

The calculator uses the square feet formula:

Where:

• \( SF \) — Square feet
• \( L \) — Length in inches
• \( W \) — Width in inches

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.

3. Importance of Square Feet Calculation

Details: Accurate square footage calculation is essential for determining material quantities, estimating costs, and planning layouts in various projects including flooring, tiling, painting, and landscaping.

4. Using the Calculator

Tips: Enter length and width measurements in inches. Both values must be positive numbers. The calculator will automatically convert to square feet.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 144?
A: Because 1 square foot equals 144 square inches (12 inches × 12 inches).

Q2: Can I use this for circular areas?
A: No, this formula is for rectangular areas. For circles, use πr²/144 where r is the radius in inches.

Q3: How accurate is this calculation?
A: The calculation is mathematically precise. Accuracy depends on the precision of your measurements.

Q4: Should I add extra for waste?
A: For practical projects, it's recommended to add 5-10% extra to account for cutting waste and errors.

Q5: Can I convert back to square inches?
A: Yes, multiply square feet by 144 to get square inches.