10 m² of floor takes 62 tiles of 300 × 600 mm; 100 sq ft takes 111 tiles of 12 × 12 inches, both with 10% for cuts.
| Area (m²) | 200 × 200 mm | 300 × 300 mm | 300 × 600 mm | 450 × 450 mm | 600 × 600 mm | 600 × 1,200 mm |
|---|---|---|---|---|---|---|
| 2 | 55 | 25 | 13 | 11 | 7 | 4 |
| 4 | 110 | 49 | 25 | 22 | 13 | 7 |
| 6 | 165 | 74 | 37 | 33 | 19 | 10 |
| 8 | 220 | 98 | 49 | 44 | 25 | 13 |
| 10 | 275 | 123 | 62 | 55 | 31 | 16 |
| 12 | 330 | 147 | 74 | 66 | 37 | 19 |
| 15 | 413 | 184 | 92 | 82 | 46 | 23 |
| 20 | 550 | 245 | 123 | 109 | 62 | 31 |
| 25 | 688 | 306 | 153 | 136 | 77 | 39 |
| 30 | 825 | 367 | 184 | 163 | 92 | 46 |
| 40 | 1,100 | 489 | 245 | 218 | 123 | 62 |
| 50 | 1,375 | 612 | 306 | 272 | 153 | 77 |
How it is computed
Tiles = area ÷ (tile length × tile width) × 1.10, rounded up. Grout joints are ignored, which adds a small safety margin. Use 15% instead of 10% for diagonal layouts or rooms with many corners.
FAQ
Is 10% waste enough?+
For a straight layout in a simple room, yes. Diagonal, herringbone or large-format tiles in small rooms call for 15% or more.
Should I keep spare tiles?+
Yes. Keep a few from the same batch: a later replacement from a new batch may not match in colour.