Tile
Work out how many tiles you need for an area, including waste for cuts.
m
m
cm
cm
%
Tiles (with waste)147
Without waste134
Area12 m²
Rounded up. Add waste for cuts and breakages.
How it works
Buying tiles without a plan means either a second trip to the shop or a pile of leftovers. This calculator tells you how many tiles a floor or wall needs, including a sensible waste allowance.
It divides the total surface by the area of one tile, then adds a percentage for cuts and breakages. For a 12 m² floor with 33×33 cm tiles (about 0.109 m² each) you need roughly 110 tiles, plus about 10% waste — so buy around 121.
Cutting at edges and around corners always wastes some material, and it is worth keeping a few spares from the same batch in case of future repairs.
Frequently asked questions
How much waste should I allow?
Around 10% for a simple rectangular room, and 15% or more for diagonal layouts, lots of corners, or large-format tiles that leave big offcuts.
Should I buy tiles from the same batch?
Yes — colour and size can vary slightly between production batches. Buy all you need at once, including spares, and check the batch number on the boxes.
Does it include grout?
The estimate uses your entered dimensions; add grout width where relevant.