20 square yards
The 12 x 20 foot room has an area of 240 square feet, and the 15 x 15 foot room has an area of 225 square feet. That's 465 square feet of carpet. But hold the phone. Carpet is generally sold by the square yard, and a square yard is 9 square feet (as 3 feet x 3 feet is 9 square feet). The 465 square feet of floor is 51.666... or 52 square yards of carpet. It might be necessary to buy some "extra" area depending on the width of the "stock" roll of carpet from which the desired pattern/color of carpet is going to be cut.
Square yards x 9 = square feet.
There are 3 feet to a yard, and 9 square feet to a square yard. Multiply yards by 3 to get feet. Multiply square yards by 9 to get square feet.
152 square yards = 1,368 square feet.
945 square feet of carpet. (just multiply square yards by nine to get square feet).
You need 166.66 square yards of carpet.
784 square feet requires a minimum of 87.1 square yards of carpet.
20 square yards
55 yards of carpet is 495 square feet. 55 x 9 = 495
133.33 square yards of carpet
59 square feet = 65/9 square yards
900 square feet.
There are 111.11 yards in 1000 square feet. This conversion can be calculated by taking the square root of 1000 (which is 31.62 feet) and dividing by 3 to get the equivalent in yards.
Total square yards: 88.89
28' x 14' (392 square feet) = 43.5 square yards of carpet needed.
13' x 15' (195 square feet) = 21.67 square yards of carpet needed.