Tile Calculator
How many tiles you really need — with waste factored in.
Tiles to buy (10% waste)
37
- Area
- 12.00 m²
- Exact tiles
- 33.3
- Boxes needed
- 7
Waste factor: 10% for standard layouts, 15% for diagonal patterns, 20% for complex mosaics. Always buy extra for future repairs — colors change between production lots.
About this calc
Calculate tile count, area covered, and how many boxes to buy. Includes a waste factor (default 10%) to cover cuts and breakage.
FAQ
- How much waste should I plan for?
- 10% is standard for straight layouts. Diagonal patterns = 15%. Complex mosaics or small rooms with lots of cuts = 20%.
- Should I buy extra boxes for repairs?
- Yes — at least one extra box. Tile manufacturers produce in batches, and colors can shift noticeably between production runs, so matching later is painful.
- Do I include grout lines?
- Most tile calculators (including this one) ignore grout lines because the tile count accounts for them automatically — you're buying tiles, not coverage.