0 if the tiles are truly 12 feet by 12 feet
549!
If the tiles are 12x12 inches square - you would need... 75 !
one 12 x 12 tile is one sq ft you need 480/1 = 480 tiles
It depends on the dimension used for measuring the tiles. Whether they are 12 in x 12 in or 12 cm x 12 cm will make a huge difference to the number of tiles required!
12" x 12" = 1 square foot To cover 500 square feet requires 500 of them, plus some extra in case you crack or chip a few.
Since a 12x12 tile is one square foot, then 38 12x12 tiles will cover 38 square feet.
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
260. Each tile is 1 sq ft.
190
14
68
120
120
1540
650
Since 12" by 12" is one foot by one foot or one square foot, 1237 of these tiles will feet in 1237 square feet.
549!