What This Calculator Does
The Square Yards of a Rectangle Calculator converts the area of a rectangular space measured in feet into square yards. This is the standard unit used when ordering carpet, sod, concrete, gravel, and many landscaping and flooring materials. Simply enter the length and width of your space in feet, and the tool returns the area in both square yards and square feet.
How to Use It
Measure the length and width of your rectangular area in feet. Type each value into the matching field and the calculator instantly multiplies them to find the area in square feet, then divides by 9 to express it in square yards. Because one yard equals three feet, one square yard equals \(3 \times 3 = 9\) square feet — that is why the area in square feet is divided by 9.
The Formula Explained
The area formula is:
$$\text{square yards} = \frac{\text{length in feet} \times \text{width in feet}}{9}$$
First the rectangle's area in square feet is found by multiplying its two side lengths. Dividing that product by 9 converts square feet into square yards.
Worked Example
Suppose a room measures 12 feet long by 15 feet wide. The area in square feet is \(12 \times 15 = 180\) square feet. Dividing by 9 gives:
$$180 \div 9 = 20 \text{ square yards}$$
So you would order enough material to cover 20 square yards, often rounding up to allow for waste and trimming.
FAQ
Why divide by 9? One yard is three feet, so one square yard is a \(3 \text{ ft} \times 3 \text{ ft}\) square, which equals 9 square feet. To go from square feet to square yards you divide by 9.
What if my measurements are in inches? Convert inches to feet first by dividing by 12, then enter the feet values here.
Should I add extra for waste? Yes. For carpet, flooring, and sod, professionals commonly add 5–10% to the calculated area to account for cuts, seams, and pattern matching.
