Area of one tile = 6" x 6" = 0.5 ft x 0.5 ft = 0.25 sq ft.
Area to be covered = 65 sq ft
Minimum number of tiles required = 65/0.25 = 260 tiles.
This is the minimum number. In real life, the number may be larger if the area to be covered is not rectangular, or whose sides are not not an exact number of half-feet. It will then be necessary to cut tiles and that could result in breakages. Also, additional tiles may be required unless you are prepared to have a mosaic of all the offcuts.
5,184 2-square-inch tiles are needed.
125 16-inch tiles.
18 10x10-inch tiles.
297 16x16-inch tiles.
113 tiles
5,184 2-square-inch tiles are needed.
125 16-inch tiles.
18 10x10-inch tiles.
297 16x16-inch tiles.
236 18-inch tiles.
113 tiles
90 tiles.
55 tiles
56 tiles to cover 224 square feet.
1296 Tiles
You will need at least 67 tiles. This will cover 150.75 square feet.
It will require a minimum of 1,462 tiles. That number will cover about 1,850.34 square feet.