Tile calculator

Find out exactly how many tiles you need for floors, walls, or backsplashes. Enter surface dimensions and tile size — we'll account for grout joints and waste.

Inputs

Room size

Tile size

mm
10%
ExactConservative

Results

Room area

square metres (m²)

Tiles (with 10% waste)

pcs

Boxes (10 tiles/box)

boxes

Net tiles

pcs (no waste)

Tile area

cm²/tile

Floor tiling — default 10% waste (floor tiling is mostly straight cuts along the perimeter). Add 10–15% more on top for herringbone or diagonal patterns.

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Related guides

How Many Tiles Do I Need?Tile Grout Gap GuideHow to Lay Tile Step by Step