A 3x12 room is 36 square feet. This means that to fill the floor in the 3x12 room, it will take 36 tiles that are each 1 square foot (12x12) in size.
13 boxes with 13 tiles in each
123 will cover it. Get extras.
If you're talking floor tiles as opposed to wall tiles and by 12x12 you mean they are 12 inches square, then the answer is 300. Because each tile is one square foot and a 15'x20' room is 300 square feet. Simple, eh?
Since there are no units given it is not possible to answer the question. The units used for measuring the tiles must be different from those used for the room.
6 tiles that are 12 ft x 12 ft should be enough.
I assume you mean an 8ft x 6ft room, which is 48ft2. I assume you mean 12in x 12in tiles, which are 1ft2 tiles. I don't know how many tiles are in a box, but you would need 48 12in x 12in tiles.
The tile is bigger than the area that you want to cover (12x12 > 10x11) so one tile will do. <><><><><> However, if you meant 12x12 INCH tiles, and a 10x11 FOOT room, you would need 110 tiles.
It would be 171 sf, ideally 171 tiles but no tile is truly 12"x12" . SO i would purchase 171 sf when you go buy the tiles. not the number of tiles.
You would need 111 tile, but with waste you will want to get 125 tile.
It depends on the dimension used for measuring the tiles. Whether they are 12 in x 12 in or 12 cm x 12 cm will make a huge difference to the number of tiles required!
14x14=156 sq ft 12x12=1sq ft assuming no waste (and there always waste) = 156 tiles are needed...(always buy an extra 10-15% fr wastage/broken ones etc )
Each tile is one square foot. So you need 126 of them, but allow for spoilage.
What kind of tiles? For the floor or walls also? Simplest example. 12x12 floor tiles. 10x12 room. One length times one width. 10x12=120 12x20 room, 240 tiles. 6x6 tiles there are 4 tiles in each square foot of floor space 10x12x4=480 Whatever you are doing, one length times one width gives you the square footage. Then figure how much each tile covers and multiply.
You need about 310 to 325 12x12 ceramic tiles for a 320 sq-ft room. Many tile dealers let you return unused tile. If your dealer does this, you should over-buy. You will probably break some, and the joint spacing may have an effect on the number of tiles required.
One 12 ft x 12 ft tile will be more than big enough!
Since a 12" x 12" tile is 1 sq ft, you would need 40 tiles. Generally speaking you always want to add 10% for waste, so you will need to buy 44 tiles.