Tiles Calculator Width of Area inches feet cm mm Length of Area inches feet cm mm Tiles Size -- Select Size -- 12 x 12 - 300 x 300 12 x 18 - 300 x 450 12 x 24 - 300 x 600 Allowance of breakage, cuts, etc. % Area of tiles in Sq. feet Area of tiles in Sq. mtr. Tiles Required (Including Allowance) Box Required Note : This may vary on basis of your actual need. This is only approx calculation.