Tile Calculator
Fill in the values and the answer updates as you type.
How the Tile Calculator works
Tiles = room area ÷ tile area × (1 + waste). Waste covers cuts and breakage.
Inputs and results
The Tile Calculator takes 4 inputs and gives 2 results.
What you enter
- Room length (m) — starts at 4.
- Room width (m) — starts at 3.
- Tile side (cm) — starts at 30.
- Waste allowance (%) — starts at 10.
What you get
- Tiles needed
- Room area (m2)
Example: Tile Calculator with the starting values
With room length 4 m, room width 3 m, tile side 30 cm and waste allowance 10 %, the calculator returns:
| Tiles needed | 147 |
|---|---|
| Room area (m2) | 12 |
Change any value above and the results update straight away.
Tile Calculator FAQ
How do I use the Tile Calculator?
Enter room length, room width, tile side and waste allowance in the fields, then read tiles needed and room area (m2) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Tile Calculator calculate?
Number of square tiles for a floor. It returns tiles needed and room area (m2) from the 4 values you provide.
What values does the Tile Calculator start with?
It opens with room length 4 m, room width 3 m, tile side 30 cm and waste allowance 10 % so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Tile Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Tile Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.