Tile Quantity Calculator

Calculate how many tiles a floor or wall needs, including grout lines, cuts and a breakage allowance.

Area length m

The floor or wall being tiled. Measure the longest run and the widest point.

Area width m

Tile length mm

Standard sizes are 150, 300, 450, 600 and 900 mm square, plus 300 by 600 rectangles.

Tile width mm

Equal to the length for a square tile.

Grout line mm

Two to three millimetres is typical for a rectified porcelain, three to five for a ceramic with a rounded edge.

Cut and breakage allowance %

Five percent for a plain straight laid floor, ten for a room with obstacles or a diagonal layout.

Tiles in a box

Usually printed on the box along with the coverage in square metres.

Price per tile

Optional. Used to show what the waste allowance costs.

Reset

Free calculator by Handcraft worked examples and methodology No account, nothing stored.