Home & DIY
Tile quantity calculator
Estimate tiles and whole boxes from area and tile dimensions.
A clear answer. Here’s how.
Divides allowed surface area by one tile’s area, then rounds up to whole tiles and boxes. Tile dimensions are converted from centimetres to metres. Grout gaps are excluded; layouts and breakage can change the required allowance.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Surface area (m²)
- 12
- Tile length (cm)
- 30
- Tile width (cm)
- 30
- Cutting allowance (%)
- 10
- Tiles per box
- 10
Example result
- Tiles required
- 147
- Whole boxes
- 15
- Tiles purchased
- 150
- Area including allowance
- 13.2 m²