Flooring & Tiling calculator
Tile Calculator
Calculate general tile quantity and optional box count from surface area, tile size, box quantity and a cutting-waste allowance.
Calculate general tile quantity and optional box count from surface area, tile size, box quantity and a cutting-waste allowance. The tool is designed for transparent planning: you can see the measurements, product assumptions and allowance that drive the result. Review tile layout and cutting waste before ordering or setting out. The calculator treats tile face area geometrically; borders, niches, diagonal layouts and pattern matching can increase the real number of tiles needed.
What you need to enter
The Tile Calculator uses the following project information to calculate the result.
- Surface area
- Tile length
- Tile width
- Waste (%)
- Tiles per box
Calculator result
Tiles and optional boxes required
How the Tile Calculator works
Calculation logic: surface area with waste ÷ tile face area. For general tile quantity and optional box count, the Tile Calculator uses that method after normalising the entered units. The output is then converted for display. The practical assumption that deserves the closest check is tile layout and cutting waste.
Tile Calculator worked example
Tile Calculator example: A 7.5 m² project using 300 mm × 300 mm tiles needs about 84 tiles before allowance. With 12% waste the requirement rises to about 94 tiles; if boxes contain 10, buy 10 boxes and keep spare matching tiles where practical. After calculating, compare the result with the job conditions and especially tile layout and cutting waste before rounding or selecting materials.
Important calculation assumptions
For general tile quantity and optional box count, the calculator treats tile face area geometrically; borders, niches, diagonal layouts and pattern matching can increase the real number of tiles needed.
Frequently asked questions
Which starting measurements make the Tile Calculator more reliable?
Measure the tiled surface, enter the actual tile dimensions and box quantity, then choose waste for cuts and the intended layout. On this page, the measurements are used specifically for general tile quantity and optional box count.
Why should I check tile layout and cutting waste in the Tile Calculator?
Do not chase extra decimal precision in the Tile Calculator until you have realistic values for tile layout and cutting waste. The calculator treats tile face area geometrically; borders, niches, diagonal layouts and pattern matching can increase the real number of tiles needed.
What should I check before buying from the Tile Calculator result?
For the Tile Calculator, round the individual tile count up first, then convert to whole boxes using the actual box quantity. Keep a small reserve of matching batch tiles if future replacement would be difficult.