How Many 30x30 cm Tiles for a 3m x 3m Bathroom?
Calculate the number of 30x30 cm tiles needed for a 3m x 3m bathroom floor, including 10% waste allowance.
How to use this tool
- Enter room length, room width, tile length, tile width and waste allowance in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your tiles needed and the full breakdown beneath it.
Find out how many 30x30 cm tiles to buy for a standard 3m x 3m bathroom, including a 10% waste buffer for cuts.
Frequently asked questions
- How many tiles do I need?
- Divide the total floor area by the area of a single tile, then add a 10% waste allowance for cuts and breakage.