Tiles
Tile calculator
A 4 × 4.5 m room in 60 × 60 cm tiles laid straight with 2 mm joints takes 53 tiles, or 14 boxes of 4. Laid half-offset it takes fewer, 51; laid diagonally, 55.
Enter the room size, the tile size and the pattern, and see how many tiles and boxes to buy, how many are whole and cut, and the real waste in per cent. It runs the same module as the RAYA app, which lays the tiles one by one on the real floor instead of adding 10% to the area.
Tile calculator
53 tiles
14 boxes of 4 tiles, leaving 3 whole tiles for later repairs
- Whole / cut
- 42 / 14 · slivers 0
- Bought over the area (waste)
- 2.27 m² (12.69%)
- Usual allowance for this pattern
- 10%
Enter the room and tile sizes as numbers above 0.
The plan starts with a whole tile in the top-left corner. In the app, it also offers starting points that use fewer tiles.
Why not the area formula
Every tile laid on the real floor
The usual formula divides the area by the tile and adds 10% for a straight layout or 15% for a diagonal one. This calculator does not: it lays the tiles on the floor one by one, counts whole and cut tiles, cuts several pieces from one tile where it can, and only then rounds up to boxes.
So the answer changes with the pattern. A 4 × 4.5 m room, 60 × 60 cm tiles, 2 mm joints:
The 10% and 15% allowances are shown for comparison only; the number to buy comes from the layout.
| Pattern | To buy | Waste |
|---|---|---|
| Straight | 53 tiles · 14 boxes | 12.69% |
| Half offset | 51 tiles · 13 boxes | 4.66% |
| Diagonal 45° | 55 tiles · 14 boxes | 12.75% |
| Area formula + 10% | 55 tiles | – |
Common room sizes
How many tiles for a room this size?
The table uses the same layout calculation as the calculator above, with tiles laid straight and 2 mm joints. A 60 × 120 tile runs its long side along the room's first dimension; turn it the other way and some rooms need a different number. Real rooms are rarely exact rectangles: enter your room's measurements in the calculator, or draw the room in the app, for a closer figure.
| Room (m) | 30 × 30 | 60 × 60 | 60 × 120 |
|---|---|---|---|
| 1.5 × 2 | 35 | 9 | 5 |
| 2 × 2.5 | 56 | 14 | 9 |
| 3 × 3 | 100 | 25 | 13 |
| 3 × 4 | 134 | 35 | 18 |
| 4 × 4 | 178 | 49 | 24 |
| 4 × 5 | 223 | 56 | 28 |
| 5 × 5 | 289 | 70 | 35 |
Limits
This calculator knows only rectangular rooms
- For a room with corners, columns or recesses, draw it in the app and use the floor's tile calculator: it lays the tiles on the room's real shape.
- Tiles per box is printed on the box; leave it empty and you get tiles only.
- For breakage in transport or on site, ask the shop or the tiler.
For air-con, see the Air-con BTU calculator
FAQ
Questions about tiles
- How many 60 × 60 cm tiles for a 4 × 4 m room?
- Laid straight with 2 mm joints: 49 tiles, 36 whole and 13 cut pieces. At 4 tiles a box, that is 13 boxes.
- How many tiles for a 3 × 3 m room?
- With 60 × 60 cm tiles laid straight and 2 mm joints: 25 tiles, 16 whole and 9 cut pieces. At 4 tiles a box, that is 7 boxes. With 30 × 30 cm tiles: 100 tiles.
- Why does a half-offset layout sometimes take fewer tiles?
- The piece cut off the end of one row can start the next, so fewer new tiles get cut. It depends on the room and the tile; switch the pattern in the calculator to compare.
- Why enter the tiles per box?
- Shops sell by the box. Enter the number printed on the box and the calculator rounds up to whole boxes and says how many whole tiles are left for later repairs.
Terms
Terms on this page
More words you meet when doing up a home are in the Interior design glossary
Arrange your first room
You can start from a sample room. Stuck anywhere? Message us on LINE @raya-studio or see plan prices on the home page
Open app