Tile Calculator
Calculate how many tiles you need for a floor or wall. Enter the area dimensions and your tile size — the calculator handles grout gaps and adds a cutting waste allowance.
Enter your values
Result
Buy all boxes from the same batch number — color shades vary between batches.
How to use
Step-by-step guide for this tool
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Save ⟶How to use the Tile Calculator
- 1Enter floor/wall length (m) in the form on the left.
- 2Fill in the remaining fields — the result updates automatically as you type.
- 3Review the highlighted result and the supporting breakdown on the right.
- 4Use Copy, Share or Print to save or send your result.
Tile estimation that survives reality
Divide the area by the coverage of one tile (including its grout gap) and add waste: 10% is standard for straight layouts, 15%+ for diagonal patterns, large-format tiles or rooms with many cuts. Cut tiles can rarely be reused on the opposite wall, which is what consumes the allowance.
Keep a few spare tiles after the job — future repairs are nearly impossible to color-match from a new batch.
Frequently Asked Questions
▸How much extra tile should I buy?
10% over the geometric requirement for straight lays, 15% or more for diagonal/herringbone patterns or rooms with many corners and obstacles.
▸Does grout gap really change the count?
Slightly — a 3 mm gap on 60 cm tiles adds about 1% coverage per tile. On small mosaic tiles the effect is much larger.