basic

Tile Floor Coverage with Waste Calculator

Tiles = ceil((room_area · (1 + waste %)) / tile_area).

Compute the number of square tiles needed to cover a floor, including a waste allowance for cuts and breakage. tiles = ceil(room_area · (1 + waste %) / tile_area). Defaults assume a 12" × 12" tile and a 10 % waste allowance.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

ft
ft
in
%

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Tiles = ceil(room_area · (1 + waste %) / tile_area)

In depth

Compute the number of square tiles needed to cover a floor, including a waste allowance for cuts and breakage. tiles = ceil(room_area · (1 + waste %) / tile_area). Defaults assume a 12" × 12" tile and a 10 % waste allowance.