25.5
Or more if you do not want to have a bunch of small pieces of tile covering some of the area. the number depends on the shape (dimensions) of the 30 sqft area.
If the area is 5' by 6' than you will need 30 tiles if you want as few pieces as possible (but you will have to cut 11 of them).
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
You will need at least 66,828 1/4 tiles to cover that area.
Assuming you mean 16x16 inches tiles... 441 tiles would cover the area exactly
You would need 29 tiles of that size to cover that area (28.77 tiles) to be precise,
120 tiles because the area of the floor is 30 square feet. If you can fit four tiles into one square foot then you could fit 120 tiles in 60 square feet.
Each tile covers 4 square feet. You will need 24.75 tiles to cover the area.
Multiply the two dimensions to get the area. The calculation will give you 4 square feet for each tile and 100 square feet for 25 tiles.
There are 144 18 square inch tiles in an area of 18 square feet.
You will need 44 six inch tiles to cover 11 square feet.
About 197 (196.875) 16" x 16" tiles will feet in that area.
6 tiles; you'll have 2/3 of one tile left over.
192 tiles
Floor area = 12 ft x 18 ft = 216 square feet. There are 4 six-inch square tiles needed for each square foot, so 864 tiles are needed.
the dimensions of one tile is 13x13 inches or 1.083x1.083 feet. Therefore area of one tile is 1.1736 square feet and that of 196 tiles is 196x1.1736=230.027
The answer depends on the shape of the 30 square feet area. If it is in the form of a strip that is 5 inches wide and 72 feet long and you don't want mosaics with little offcuts, then you will require 144 tiles.
Each tile covers 81 square inches. You have 1,296 square inches to cover. It will take 16 tiles to cover that area.