Tile calculator: how many boxes
Area plus a waste allowance turned into whole boxes of tiles, panels or porcelain, with the square metres the purchase gives you.
Your figures
Result
The figures changed. Press “Calculate again” to see the new result.
Building material catalogue — 40 materials in the catalogue
How we calculate it
What you enter
- Area (m²)
- Pack coverage (m²)
- Waste (%)
What to watch out for
A 5–7% allowance is enough for a straight layout. Large format, diagonal or brick-bond layouts need 10–15%. Buy from a single batch.
Formula
required = Area × (1 + Waste ÷ 100)
packs = ⌈ required ÷ Pack coverage ⌉
you buy = packs × Pack coverage
actual waste = (you buy − Area) ÷ you buy × 100%The site's engine is a 1:1 port of the Android app's code.
Frequently asked questions
How many tiles do you need for 10 m²?
Add the waste allowance to the area and divide by the coverage of one box. The calculator rounds up to a whole box and shows how many square metres the purchase comes to.
How much waste should you allow for tiles?
5–7% for a straight layout, 10–15% for large format, diagonal or brick-bond. The calculator adds that percentage to the area before turning it into boxes.
Other calculators
Guides that use this calculator
The same formula in the app LiczMat for Android uses the same engine offline — with the material catalogue and results saved into a project. Download