Overview
This tile calculator helps you estimate tile quantity for flooring and wall tiling projects. It converts tile dimensions from centimeters into square meters, adds your waste allowance for cuts and breakage, then rounds up to whole tiles and whole boxes. Use it to answer the common question: how many tiles do I need?
Use cases
- Estimating tiles for a bathroom wall.
- Calculating floor tiles for a kitchen, hallway, or terrace.
- Planning tile purchases before renovation.
- Checking how many boxes to buy from a tile store.
- Adding a waste margin for diagonal layouts or tricky cuts.
How it works
- 1
Enter the total area in square meters.
- 2
Add the tile width and height in centimeters.
- 3
Set the waste percentage for cuts and extra coverage.
- 4
Enter how many tiles come in one box.
- 5
Get the total tile count, boxes needed, and purchase area with waste.
Examples
Example calculation
Input: Area: 12 m², tile size: 30 x 60 cm, waste: 10%, tiles per box: 8
Output: Area with waste: 13.2 m². Tile count and boxes are rounded up to the next whole number.
Useful for quickly estimating purchase quantities.
Formula
Input: Tile area = width × height / 10,000. Area with waste = area × (1 + waste/100). Tiles = ceil(area with waste / tile area). Boxes = ceil(tiles / tiles per box).
Output: All final quantities are rounded up.
Clear calculation logic for shopping planning.
FAQ
How do I calculate how many tiles I need?
Measure the area in square meters, convert the tile size to square meters, add waste, then divide by tile area and round up.
Why should I add waste when buying tiles?
Waste covers cuts, breakage, pattern matching, and possible mistakes during installation.
Does this calculator work for walls and floors?
Yes. It works for any tiled surface as long as you know the total area and tile size.
Should I round up the tile count?
Yes. Always round up to whole tiles and whole boxes so you do not run short.