Tile Calculator: How Many Tiles and Boxes Do I Need?
Floor size
Tile
Typical for this size; check the box. One box covers 1.44 m² (15.5 sq ft).
Buy all boxes from the same batch (shade and size can vary between batches) and keep a few spare tiles for future repairs.
Tiles needed
37 tiles
- Area to tile
- 12.00 m² (129 sq ft)
- With wastage
- 13.20 m²
- One tile
- 600 × 600 mm, 0.360 m²
- Boxes to buy
- 10
- Extra tiles in the last box
- 3
How this works
Area = length × width (minus doors and windows for a wall), or the area you enter in m² or sq ft (1 m² = 10.764 sq ft). Wastage for cuts and breakage is added: an assumed 10% for a straight lay and 15% for diagonal or herringbone patterns.
Tiles needed = area with wastage ÷ the area of one tile, rounded up. Boxes = tiles ÷ tiles per box, rounded up. Tiles per box defaults to a typical count for each size (for example 4 tiles of 600 × 600 mm, 1.44 m² a box), which you should check against your supplier.
The optional cost multiplies the area of the whole boxes you buy (in sq ft) by the price per sq ft, as tile shops in Singapore usually quote. Laying, adhesive, grout and hacking are not included.
FAQs
How many 600 × 600 mm tiles do I need for 12 m²?
37 tiles with 10% wastage: 12 m² + 10% = 13.2 m², divided by 0.36 m² per tile = 36.7, rounded up. At 4 tiles a box that is 10 boxes.
How many tiles are in 1 square metre?
About 11.1 tiles of 300 × 300 mm, 5.6 tiles of 300 × 600 mm, 2.8 tiles of 600 × 600 mm and 1.4 tiles of 600 × 1200 mm, before wastage.
How much extra tile should I buy for wastage?
About 10% extra for a straight lay and 15% for diagonal or herringbone patterns, more for large tiles in small or irregular rooms. Keep a few spare tiles from the same batch for future repairs.
How many tiles do I need for 100 sq ft?
29 tiles of 600 × 600 mm with 10% wastage (100 sq ft is 9.29 m²), which is 8 boxes of 4.