To answer the question you need the area of the room not just one dimension.
142.22 tiles First, calculate the number of square inches you need by converting : 320 ft²*144 in² 1 ft²=46,080 in² Second, determine the area of the tiles: 18in * 18in = 324 in² Lastly, divide the total area by the area of the tile to determine the number you need: 46,080 in² / 324 in² = 142.22 tiles
4
You would need 450 tiles
That would depend on the size of the tiles.
1500 tiles
142.22 tiles First, calculate the number of square inches you need by converting : 320 ft²*144 in² 1 ft²=46,080 in² Second, determine the area of the tiles: 18in * 18in = 324 in² Lastly, divide the total area by the area of the tile to determine the number you need: 46,080 in² / 324 in² = 142.22 tiles
4
You need 27 Box of 9 tiles
You would need 450 tiles
That would depend on the size of the tiles.
1500 tiles
You would need 173 tiles (you would have fractions of tiles left over)
You would need 358 tiles.
123 tiles
You would need a total of 36 tiles to cover that area.
Assuming you mean the tiles are 16 inches square - you would need 169 tiles.
That depends entirely on the SIZE of the tiles ! A tile size of 1 ft2 would need 112 tiles, whereas a tile size of 6in2 would need 448 !