You will need at least 66,828 1/4 tiles to cover that area.
I recall answering this recently. If the area is square, and the tile dimensions are in inches then the tiles are 4 sq ft and you need 12 tiles. If the area is not square (Circular? Long and thin?) then you will have wastage, so you will need more tiles.
20" = 2.78 square feet. Now divide the area of the tiles into the area of the room. 140/2.78 = 51 tiles
100 tiles or 96 which is the correct amount
the area and perimeter of the plane figures are square ,rectangle
Simply divide the total area (384 sq ft) by the tile area (18 sq ft)384 / 18 = 21.333 tilesAssuming that you can only use a whole, and not .333 of a tile, you round up to the nearest tile.21.333 tiles --> 22 tiles
You need to work out the tiling pattern first. Sometimes you can start with a whole tile in a corner, but often the pattern looks better if you have the same size part tiles all the way round - if the whole area is visible, part tiles one side and whole the other looks odd, particularly with large tiles. You also want to avoid a row at the edge that is very narrow part tiles. Work out how many part tiles are needed and how many tiles they must be cut from. After that, calculate the area to be covered in whole tiles and divide by the area of a tile, altghough most boxes of tiles state the coverage - something like 12 tiles per square metre or whatever. Then add 10% to the total. You will often have to buy complete boxes too.
These 327 tiles will cover an area of 383.8 square feet.
You would need 29 tiles of that size to cover that area (28.77 tiles) to be precise,
Assuming you mean 16x16 inches tiles... 441 tiles would cover the area exactly