Count how many tiles you need for a floor or wall.
A tile's area in square feet is its size squared divided by 144 inches. Dividing the room area by that gives the tile count, with waste added for cuts. Tiles are fragile and grid edges never line up perfectly, so buying extra with a waste margin avoids running short mid-project.
Tile Count
Tiles = room area / (tile size² / 144)
Tiles = room area / (tile size² / 144) A tile's area in square feet is its size squared divided by 144 inches. Dividing the room area by that gives the tile count, with waste added for cuts.
Tiles are fragile and grid edges never line up perfectly, so buying extra with a waste margin avoids running short mid-project.
This calculator takes 4 inputs: Area length, Area width, Tile size, Waste allowance. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.