Tile Quantity Calculator
Estimate how many tiles you need for a room, including wastage.
Assumptions used in this calculation
- Wastage default: 10% wastage is typical for a simple grid layout in a rectangular room; diagonal, herringbone or intricate-pattern layouts typically need 15-20%.
- Tile footprint only: Room area is divided by tile face area alone, grout line width is not added to each tile's footprint, a minor simplification.
About this calculator
The tile quantity calculator estimates the number of tiles needed to cover a room, given tile size and a wastage allowance for cuts and breakage.
Worked example
150 sqft room, 2×2 ft tiles, 10% wastage
Result: 42 tiles
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