How many tiles do I need?
Calculate how many tiles you need for your project, including cutting waste for a clean layout.
A reliable estimate depends on the area, tile size and a sensible allowance for cuts and breakage.
How the calculation works
- Enter the area in square metres.
- Choose the tile size.
- Enter the waste allowance.
- Read the required number of tiles.
The result is rounded up. The waste allowance is a reserve and does not replace planning the laying pattern.
Calculator
Enter area, tile format and waste allowance. The result includes the reserve.
Example: With 20 m², 30 × 30 cm tiles and 12% waste, you need approximately 248 tiles.
Pro tips
- Always plan 10-15% extra for cuts and breakage.
- Larger tiles need less grout and look more modern.
Frequently Asked Questions
How much waste should I allow for tiles?
10% is usually enough for straight layouts; for diagonal patterns or lots of cuts (e.g. around corners), allow more like 15-20%.
What tile size is easiest to lay?
Larger formats like 60×60 cm have fewer joints and often look more upscale, but are more demanding to lay than smaller formats.
How do I calculate the number of tiles I need?
Divide the area to be tiled by the area of a single tile and add a waste allowance – the calculator above does this automatically.
Should I buy all my tiles at once?
Yes, ideally from the same batch – different batches can have slight color or size variations.