297 16x16-inch tiles.
16x16 square feet = 256 square feet, so two tiles will suffice.
Assuming you mean 16x16 inches tiles... 441 tiles would cover the area exactly
56 16x16" tiles are needed.
125 16-inch tiles.
Two tiles of 16 ft*16 ft will cover 512 square feet.
150 16x16" tiles; you'll have a small part of one tile left over.
675 of them. Get extra for breakage.
178 Tiles If the square footage is the actual room size you add 10% for wastee