How many floor tiles do I need? A table by room size
A 3 × 4 m room (9.8 × 13.1 ft) has 12 m² of floor and needs 13.2 m² of floor tile with 10% extra for cuts: 7 boxes of 2 m² (14 m²), with 0.8 m² left over. The box size and the allowance are generic example figures, not a product’s: use the square metres per box printed on your tiles.
| Room | In feet | Floor area | With 10% extra for cuts | Boxes to buy | Left over | Your room |
|---|---|---|---|---|---|---|
| 2 × 2 m | 6.6 × 6.6 ft | 4 m² | 4.4 m² | 3 boxes of 2 m² (6 m²) | 1.6 m² | Open 2 × 2 m in the planner |
| 2.5 × 3 m | 8.2 × 9.8 ft | 7.5 m² | 8.25 m² | 5 boxes of 2 m² (10 m²) | 1.75 m² | Open 2.5 × 3 m in the planner |
| 3 × 3 m | 9.8 × 9.8 ft | 9 m² | 9.9 m² | 5 boxes of 2 m² (10 m²) | 0.1 m² | Open 3 × 3 m in the planner |
| 3 × 3.5 m | 9.8 × 11.5 ft | 10.5 m² | 11.55 m² | 6 boxes of 2 m² (12 m²) | 0.45 m² | Open 3 × 3.5 m in the planner |
| 3 × 4 m | 9.8 × 13.1 ft | 12 m² | 13.2 m² | 7 boxes of 2 m² (14 m²) | 0.8 m² | Open 3 × 4 m in the planner |
| 3.5 × 4 m | 11.5 × 13.1 ft | 14 m² | 15.4 m² | 8 boxes of 2 m² (16 m²) | 0.6 m² | Open 3.5 × 4 m in the planner |
| 4 × 4 m | 13.1 × 13.1 ft | 16 m² | 17.6 m² | 9 boxes of 2 m² (18 m²) | 0.4 m² | Open 4 × 4 m in the planner |
| 4 × 5 m | 13.1 × 16.4 ft | 20 m² | 22 m² | 11 boxes of 2 m² (22 m²) | None | Open 4 × 5 m in the planner |
| 5 × 5 m | 16.4 × 16.4 ft | 25 m² | 27.5 m² | 14 boxes of 2 m² (28 m²) | 0.5 m² | Open 5 × 5 m in the planner |
| 5 × 6 m | 16.4 × 19.7 ft | 30 m² | 33 m² | 17 boxes of 2 m² (34 m²) | 1 m² | Open 5 × 6 m in the planner |
Each row is the planner’s answer for that room, worked out when this page was built. The link at the end of a row opens the planner with that room filled in, to change the measurements and the product figures.
The square metres in a box differ from one tile to the next, so the box count changes with the tiles you choose. The area with the allowance does not: divide it by the square metres printed on your box and round up, or use the floor tile calculator.
To count tiles and not boxes, How many tiles in a square metre? has a table for eight tile sizes.
The table counts the tiles only. In the list each row opens, the adhesive, the grout and what goes under the tiles are marked Check first, because they depend on the tile and on what the floor is: How many tiles do I need for a floor or a wall? says what to check.
What the table assumes
Each room is a rectangle, with one door 0.762 m × 1.981 m.
- 1 door taken off the wall area; nothing is taken off the ceiling or the floor.
- Every quantity is rounded once, at the end, up to whole packs. Working uses unrounded figures.
- Floor tiles use generic example figures, not the figures of any product. Enter the figures from the tin or pack for a closer answer.
- 2 m² per box (generic example)
- 10% allowance (generic example)
How this table was made
It was worked out when this page was built, by the same room planner and formulas as the editable list: each row is one room sent through the planner. The room sizes are round examples. Product coverage, pack and allowance figures are the planner’s labelled generic examples, not figures for a product.
AI tools drafted the page and automated tests compare every cell with the planner. It has not been checked by a tradesperson or anyone outside the build. No price is shown or used.
Before you use it
Measure your own room, its doors and its windows. Check the figures against the room, and follow each product's own instructions: they decide coverage, coats and preparation.
Built and checked with AI tools, not yet by a tradesperson or anyone outside the build. Estimates are arithmetic on your measurements and the figures shown with them: follow each product's own instructions.