Tiles needed
Tiles = floor area ÷ tile area × (1 + waste%)
Add 10% waste for straight layouts and 15% for diagonal or patterned ones to cover cuts and breakage. Buy from a single batch/lot so shades match, and keep a few spares for future repairs.
How many tiles do you need?
Divide the surface area by the area of a single tile, then add a waste allowance for cuts and breakage. Enter the room and tile sizes in any units — the calculator keeps everything consistent and rounds up to whole tiles and boxes.
Allow ~10% waste for standard layouts and 15–20% for diagonal or patterned installs.