Tile Calculator (Floor & Wall)
Calculate total floor or wall tiles needed, accounting for grout gaps and box packs
m
m
cm
cm
%
Calculation Result
Boxes of Tiles to Buy
10 Boxes
37 total tiles (including 10% waste)Exact Tiles
34
Room Area (m²)
12 m²
Room Area (ft²)
129.17 ft²
How this calculator works
1
Enter room length and width.
2
Enter individual tile length and width in cm or inches.
3
Set tiles per box and wastage margin.
Formula & Mathematics
Tile Requirement Formula
Total Tiles = [Room Area / Tile Area] × (1 + Wastage%)
Adds 10% to 15% wastage for cuts, corner fittings, and pattern breaks.
Worked Example
4m × 3m room with 60cm × 60cm tiles
Room Area = 12 m², Tile Area = 0.36 m², 10% waste.
• Exact tiles = 12 / 0.36 = 33.3 tiles
• With 10% waste = 37 tiles
• At 4 tiles/box = 10 boxes needed
Purchase 10 boxes (37 total tiles).
Frequently Asked Questions
Diagonal herringbone or 45-degree layouts require cutting almost every perimeter tile, typically necessitating 15% wastage instead of 10%.
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