What Is the Square Footage Calculator?
This calculator finds the area of a rectangular space by multiplying its length and width, both measured in feet. The result is the total square footage — a number used everywhere from real estate listings and flooring estimates to paint, tile, and carpet purchases. It also converts the result into square yards and square meters so you can match whatever your supplier or contractor uses.
How to Use It
Measure the length and width of your room or space in feet. Enter both values and the calculator instantly returns the total area. For non-rectangular spaces, split the area into rectangles, calculate each separately, and add the results together.
The Formula Explained
The formula is simply $$\text{Area} = \text{Length} \times \text{Width}$$. Because both measurements are in feet, the product is in square feet. To convert square feet to square yards, divide by 9 (since 1 square yard = 3 ft × 3 ft = 9 sq ft). To convert to square meters, multiply by 0.09290304.
Worked Example
Suppose a room is 12 feet long and 10 feet wide. The area is $$12 \times 10 = 120 \text{ square feet}.$$ That equals \(120 \div 9 = 13.33\) square yards, or \(120 \times 0.09290304 \approx 11.15\) square meters.
FAQ
What if my measurements are in inches? Divide each measurement by 12 to convert to feet first, then multiply.
How do I handle an L-shaped room? Divide it into rectangles, find each rectangle's square footage, and add them together.
Why do I get a different number than the listing? Listings sometimes include or exclude walls, closets, or unfinished areas, so always confirm what was measured.
