It depends on the isze of the room. Without giving the units of measurement, saying that the room is 12 x 13 is useless, and makes the question unanswerable. Is it 12 ft by 13 ft, or yards or metres or cubits?
13-ft x 16-ft = 208 square feet
Roughly 22 square yards.
each tile is one square foot so you need 55 tiles
You need 166.66 square yards of carpet.
169 square feet
13-ft x 16-ft = 208 square feet
Roughly 22 square yards.
You need a price for the carpet, per square foot, to find the answer.
each tile is one square foot so you need 55 tiles
800 square feet
You need 166.66 square yards of carpet.
169 square feet
The square footage of a 12 x 12 room is 144 feet. Most carpet comes in 12 foot width or wider. If it is 12 foot wide you just need a 12 foot piece off the roll. If the carpet is wider, you still have to buy that width and will have some waste.
You will need a minimum of 16 square feet of carpet to cover that area.
You will need: 12*24 = 288 square feet
A minimum of 324 square feet. Multiply length by width - the result is the area in square feet.
Broken down as follows: 30 feet = 10 yards 36 feet = 12 yards 10 x 12 = 120 square yards