How to calculate tile quantity
Measure the surface and the tile.
1
Measure the area
Multiply room length by width.
2
Enter tile size
Use the actual tile dimensions in centimetres.
3
Add waste
Allow 10% for standard layouts and more for complex cuts.
What does this tool do?
Tile estimates need the surface area, the tile size and a waste allowance for cuts and breakage. This calculator returns the tile count and the number of boxes based on the coverage printed on the box.
The Formula
Tiles = Area ÷ Tile area × (1 + Waste %)Frequently Asked Questions
What waste percentage should I use?
Ten percent is typical for a simple rectangular layout. Use 15% for diagonal patterns, many cuts or large-format tiles.
Should I order by area or by box?
Calculate tiles, then round up to full boxes. Check the box coverage because tile counts vary by size.