Flooring & Tiling Calculators
Measure floors and walls and work out tiles, boxes and grout, with waste allowances for cuts and breakage.
Tile Calculator
Tiles and boxes for floors or walls, including cuts and waste.
Open calculatorGrout Calculator
Grout quantity from tile size, joint width and depth.
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About these calculators
Flooring and wall materials are bought in fixed units, boxes of tile and bags of grout, so every estimate ends by rounding up to whole packages. Buying everything from the same production batch also matters: tiles from different lots can vary slightly in shade and size.
Start with an accurate room area, add a waste allowance that reflects the layout (straight lay, diagonal or herringbone), and keep a few spare pieces for future repairs.
Related guides
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How to Calculate Square Footage
Rectangles, L-shapes, triangles and circles, plus feet-and-inches conversions.
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How to Calculate Tile and Grout for a Bathroom
Floor and shower walls, waste for small rooms, boxes, and grout for big tiles versus mosaics.
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How Much Extra Material Should You Buy?
Waste allowances by material, what drives them up, and the cost of running short.
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