How many tiles do I need for a bathroom? A table by room size
A 2 × 2.5 m bathroom (6.6 × 8.2 ft), 2.4 m high, with one door, has 20.09 m² of wall, tiled to the ceiling, and needs 22.1 m² of tile with 10% extra for cuts: 23 boxes of 1 m² (23 m²), with 0.9 m² left over. Tiled up to 1.2 m instead, the wall is 9.89 m² and needs 11 boxes of 1 m² (11 m²). The box size and the allowance are generic example figures, not a product’s: use the square metres per box printed on your tiles.
| Bathroom | In feet | Wall area to the ceiling | Boxes to the ceiling | Wall area up to 1.2 m | Boxes up to 1.2 m | Your bathroom |
|---|---|---|---|---|---|---|
| 1.5 × 2 m | 4.9 × 6.6 ft | 15.29 m² | 17 boxes of 1 m² (17 m²) | 7.49 m² | 9 boxes of 1 m² (9 m²) | Open 1.5 × 2 m in the planner |
| 2 × 2 m | 6.6 × 6.6 ft | 17.69 m² | 20 boxes of 1 m² (20 m²) | 8.69 m² | 10 boxes of 1 m² (10 m²) | Open 2 × 2 m in the planner |
| 2 × 2.5 m | 6.6 × 8.2 ft | 20.09 m² | 23 boxes of 1 m² (23 m²) | 9.89 m² | 11 boxes of 1 m² (11 m²) | Open 2 × 2.5 m in the planner |
| 2.5 × 2.5 m | 8.2 × 8.2 ft | 22.49 m² | 25 boxes of 1 m² (25 m²) | 11.09 m² | 13 boxes of 1 m² (13 m²) | Open 2.5 × 2.5 m in the planner |
| 2 × 3 m | 6.6 × 9.8 ft | 22.49 m² | 25 boxes of 1 m² (25 m²) | 11.09 m² | 13 boxes of 1 m² (13 m²) | Open 2 × 3 m in the planner |
| 2.5 × 3 m | 8.2 × 9.8 ft | 24.89 m² | 28 boxes of 1 m² (28 m²) | 12.29 m² | 14 boxes of 1 m² (14 m²) | Open 2.5 × 3 m in the planner |
| 3 × 3 m | 9.8 × 9.8 ft | 27.29 m² | 31 boxes of 1 m² (31 m²) | 13.49 m² | 15 boxes of 1 m² (15 m²) | Open 3 × 3 m in the planner |
| 2.5 × 3.5 m | 8.2 × 11.5 ft | 27.29 m² | 31 boxes of 1 m² (31 m²) | 13.49 m² | 15 boxes of 1 m² (15 m²) | Open 2.5 × 3.5 m in the planner |
| 3 × 3.5 m | 9.8 × 11.5 ft | 29.69 m² | 33 boxes of 1 m² (33 m²) | 14.69 m² | 17 boxes of 1 m² (17 m²) | Open 3 × 3.5 m in the planner |
| 3 × 4 m | 9.8 × 13.1 ft | 32.09 m² | 36 boxes of 1 m² (36 m²) | 15.89 m² | 18 boxes of 1 m² (18 m²) | Open 3 × 4 m in the planner |
Each row is the planner’s answer for that bathroom, worked out when this page was built. The link at the end of a row opens the planner with that bathroom filled in, to change the measurements and the product figures.
For every bathroom, the planner warns: Older paint can contain lead and textured coatings applied before 2000 can contain asbestos: do not sand or scrape a coating you are not sure about; get advice first.
A door comes off the wall up to the tiled height. A window comes off only when the walls are tiled to the ceiling: these bathrooms have a door and no window. How many tiles do I need for a floor or a wall? works through both heights.
The square metres in a box differ from one tile to the next, so the box count changes with the tiles you choose. The wall area does not: add the 10% for cuts, divide by the square metres printed on your box and round up, or use the tile calculator.
What the table assumes
Each bathroom is a rectangle 2.4 m high, 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.
- Wall tiles use generic example figures, not the figures of any product. Enter the figures from the tin or pack for a closer answer.
- 1 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.