About Tile Calculator
A tile estimate divides the area to cover by the area of one tile and adds extra for cuts and breakage. This calculator uses tiles = floor area ÷ tile area × (1 + waste ÷ 100), rounded up, where floor area = length × width in m² and tile area = tile length × tile width in cm ÷ 10,000. Boxes = tiles ÷ tiles per box, rounded up. Grout joints are ignored, which slightly overestimates the count.
How to use Tile Calculator
- Fill in "Room length", "Room width", "Tile length" and "Tile width", and the other options.
- The result appears below and updates as you type.
- Copy the result with the copy button, or download it as a file where that is offered.
Questions about Tile Calculator
How much waste should I allow for tiles?
About 10% is typical for a straight layout in a rectangular room. Allow around 15% for diagonal or herringbone patterns and rooms with many corners, since more tiles have to be cut.
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