30x30 Tile Calculator

About 30x30 Tile Calculator

A 30 by 30 centimetre tile covers 0.09 square metres, so there are just over 11 tiles to the square metre. A 4 by 3 metre room of 12 square metres needs about 134 tiles before waste and around 148 with a 10 percent allowance. This page opens with the tile size already set so you only enter the room dimensions. Thirty by thirty is the traditional format and it remains the practical choice in several situations that large format tiles handle badly. Small tiles follow an uneven floor far better, since each one only has to span 30 centimetres, so they are more forgiving on an old or slightly out of level substrate. They also waste less material on cuts, because an offcut from a 30 centimetre tile is more likely to be usable somewhere else in the room. And they suit small rooms visually: a bathroom floor tiled in 60 by 60 tiles can end up with awkward part tiles on three sides, whereas smaller tiles distribute the cuts more evenly. The tradeoff is many more grout lines to lay and to clean. For a large format see 60x60 Tile Calculator.

How to use 30x30 Tile Calculator

  1. Enter the floor or wall area dimensions in metres
  2. Enter tile length and width in centimetres
  3. See tile count and optional box count in metric and imperial

Frequently Asked Questions

How many 30x30 tiles per square metre?
Exactly 11.11, since each tile covers 0.09 square metres. Multiply your area by 11.11 and round up for the raw count, then add waste.
How many 30x30 tiles for a 10 square metre room?
About 112 tiles before waste, and roughly 123 with a 10 percent allowance. Rooms with more corners and obstacles need a larger allowance.
Are smaller tiles easier to lay on an uneven floor?
Yes. Each tile only has to span 30 centimetres, so it follows undulations that a 60 centimetre tile would bridge, leaving a visible lip at the corners. On an older floor this makes a real difference.
Do 30x30 tiles waste less material?
Generally yes. Offcuts are smaller and more likely to be reusable on another edge of the room, whereas cutting a large tile often leaves a piece too small to use anywhere.
Are small tiles better for a small room?
Often. Large tiles in a small room can leave awkward slivers along several walls, while smaller tiles distribute the cuts more evenly. Plan the layout from the centre outward to see how the edges fall.

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