Tile Calculator
Work out how many tiles you need for a wall or floor.
Tiles required
40tiles
- Surface area
- 7.2 m²
- Area in feet
- 77.5 ft²
v1.0 · Reviewed September 2026
How this is worked out
The surface area is divided by the area of one tile, multiplied by any waste allowance, then rounded up to whole tiles.
Worked example
- Surface 3 m × 2.4 m
- Tile 300 × 600 mm
- No waste allowance
7.2 m² ÷ 0.18 m² = 40
40 tiles
Assumptions and limits
- Grout joints are not deducted, so the count is very slightly generous on large areas.
- Cuts around edges, corners and fittings mean most jobs need a waste allowance, commonly 10 per cent and more for diagonal or patterned layouts.