Tile Calculator
Calculate how many tiles you need including wastage.
10% is common for cuts and breakage
Tiles to buy
147
133.3 exact · 146.7 with wastage
Area
12 m²
Exact tiles
133.3
With wastage
146.7
In-depth explanation
Work out tile count from floor or wall area and tile size, with a wastage allowance for cuts and breakage. Everything runs locally in your browser — your inputs are not uploaded to produce the result.
About 10% is common; use more for diagonal layouts or lots of cuts. Enter the area you’re tiling either way.
UK mode uses mm for tiles; US mode uses inches. Tweak the inputs above to compare options, then copy or note the result you need.
Wastage of about 10% is normal; diagonals, herringbone, and lots of cuts want more. Tile size must be in the same unit system as the area. Grout joints slightly reduce covering area — most people ignore that and keep the wastage buffer.
Walls and floors can use different tiles and different wastage. Count each surface separately. This does not estimate adhesive or grout volume.
Frequently asked questions
How much wastage should I add?
About 10% is common; use more for diagonal layouts or lots of cuts.
Can I use this for walls and floors?
Yes — enter the area you’re tiling either way.
Are tile sizes in mm or inches?
UK mode uses mm for tiles; US mode uses inches.
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