Tile Quantity Calculator
Number of tiles and boxes for a floor or wall, including grout joints and cutting waste.
Inputs
m
m
mm
mm
mm
%
pcs
Results
- Tiles needed
- 73 pcs
- Boxes
- 10 boxes
- Area
- 12 m²
- Tiles before waste
- 65.7 pcs
Formula
Tile module = (tile L + joint) × (tile W + joint)
Tiles = ⌈Area ÷ module × (1 + waste)⌉
Boxes = ⌈Tiles ÷ per box⌉
Assumptions & limits
- Use 10% waste for straight lay, 15% for diagonal or herringbone.
- Subtract fixed fittings and openings from the area first.
Worked example
12 m² ÷ (0.603 × 0.303) = 65.7 tiles × 1.10 → 73 tiles = 10 boxes.