A 4x4 tile covers an area of 16 square inches (since 4 inches x 4 inches = 16 square inches). There are 144 square inches in a square foot (12 inches x 12 inches = 144 square inches). Therefore, to find out how many 4x4 tiles fit in a square foot, divide 144 by 16, which equals 9. Thus, you can fit 9 four-inch by four-inch tiles in a square foot.
250 tiles
A square with 6" on each side is 1/4 sq ft, so there are 4 tiles in 1 sq ft, and 4 tiles x 8 = 32 tiles.
4
1500 tiles
178 tiles
There are 3 tiles per foot, so 9 per square foot. 3 ft x 5 ft = 15 sq ft x 9 tiles per sq ft = 135 tiles
250 tiles
A square with 6" on each side is 1/4 sq ft, so there are 4 tiles in 1 sq ft, and 4 tiles x 8 = 32 tiles.
21"x16"=336 sq inches 336 sq inches / 144 sq in per sq ft = 2.33 sq ft per tile 120 sq ft / 2.33 sq ft = 51 tiles Add 15% for breakage and cuts = 60 tiles
4
6,144 tiles !
204 tiles
1500 tiles
178 tiles
256 tiles
256 sq in = 1.7777 sq ft ea X 56 tiles = 115.55 sq ft area to cover
if tiles are 18.5 inch on a side then 18.5 x 18.5 = 342 sq in = 2.38 sq ft; 2880/2.38 = 1212 tiles