How this calculator works
Tile sizes are in centimeters and floor dimensions in meters. Waste is applied to the unrounded area-based quantity, then rounded upward to whole tiles. This estimate excludes grout spacing and layout details; cuts and patterns affect actual needs.
The formula
Tiles = area / tile area
Final quantity = ceiling(tiles × (1 + waste % / 100))A quick example
A 4 × 3 m area with 30 × 30 cm tiles needs 134 whole tiles before waste, or 147 with 10% waste.
How to use this calculator
- Enter the labeled values, using a decimal point for fractions.
- Check the units and assumptions.
- Calculate, review the result and copy it if needed.
A few common questions
How is this result calculated?
Tiles = area / tile area
Final quantity = ceiling(tiles × (1 + waste % / 100))
What assumptions should I check?
Tile sizes are in centimeters and floor dimensions in meters. Waste is applied to the unrounded area-based quantity, then rounded upward to whole tiles. This estimate excludes grout spacing and layout details; cuts and patterns affect actual needs.
Can I see a worked example?
A 4 × 3 m area with 30 × 30 cm tiles needs 134 whole tiles before waste, or 147 with 10% waste.