Flooring & Tiling calculator
Wall Tile Calculator
Work out wall-tile quantity from the tiled wall area, tile dimensions, openings and a waste allowance for cuts around edges and fittings.
Work out wall-tile quantity from the tiled wall area, tile dimensions, openings and a waste allowance for cuts around edges and fittings. For a reliable estimate, measure the real project rather than relying on nominal room or product sizes. The input most worth checking is 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 you need to enter
The Wall 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 Wall Tile Calculator works
Core method: surface area with waste ÷ tile face area. On the Wall Tile Calculator, this relationship is applied specifically to wall tiles and boxes for a measured tiled wall. Compatible measurements are converted to a common internal unit before calculation, then the result is returned in the selected unit system. The main variable to verify is tile layout and cutting waste.
Wall Tile Calculator worked example
Wall Tile Calculator example: For 12 m² of wall tiling using 600 × 300 mm tiles, each tile covers 0.18 m². After a 10% waste allowance, the theoretical count is about 74 tiles; if a box contains 8, the order rounds up to 10 boxes. Before relying on that figure, check tile layout and cutting waste; the final decision should also follow the actual product or project specification.
Important calculation assumptions
For wall tiling, measure only the sections that will be tiled and account for windows, niches and fittings deliberately. Corners, trims and pattern alignment can create offcuts that a simple area calculation cannot predict.
Frequently asked questions
Which starting measurements make the Wall 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. The Wall Tile Calculator then applies those figures to wall tiles and boxes for a measured tiled wall.
What can cause tile layout and cutting waste to differ from my first estimate in the Wall Tile Calculator?
In the Wall Tile Calculator, errors in tile layout and cutting waste can materially affect the result. The calculator treats tile face area geometrically; borders, niches, diagonal layouts and pattern matching can increase the real number of tiles needed.
Should I order exactly the amount shown by the Wall Tile Calculator?
For the Wall Tile Calculator, treat the output as a decision aid rather than an isolated number. Round up to whole tiles and then whole boxes where a box count is entered. Keep spare matching tiles for breakage and later repairs, particularly with batch-sensitive finishes.