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Tile Estimator

Number of tiles and boxes needed for a floor.

Enter values

m
m
cm
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The formula

tiles = room area / tile area, plus 10% waste

Divide the floor area by the area of one tile, then add a margin. The 10% allowance covers edge cuts, breakages and a few spares for future repairs; go to 15% for diagonal or herringbone layouts, where cutting waste is considerably higher.

All calculations run locally in your browser and update instantly as you type.

Example calculations

Common questions this calculator answers — select one to load its values.

How many 30 cm tiles for a 4 m by 3 m floor? Tiles needed (with 10% waste) 147 How many 60 cm tiles for a 5 m by 4 m room? Tiles needed (with 10% waste) 62

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Frequently asked questions

Why add 10%?+
Extra tiles cover cuts at edges, breakages and future repairs. 10% is a common allowance; use 15% for diagonal layouts.
All calculations run locally in your browser. Nothing you type is sent to a server.