Tiling calculators & guides
Free tiling tools and plain-English guides for UK — each gives the answer fast and shows the working behind it.
About tiling calculations
Tiling is an area trade: every job comes down to how much flat surface you are covering and how many fixed-size pieces it takes to cover it. The arithmetic is simple — area divided by tile size — but it is unusually unforgiving of a rushed estimate, because tiles are cut at every wall, corner and fixture, the offcuts rarely reuse, and a tile bought short may come from a different firing batch with a subtly different colour.
The tiling tools here handle that area maths and the waste allowance that goes with it, showing the working so you can see how tile size and layout change the count. They take dimensions in feet or metres and convert as needed, because tile sizes arrive in both inches and millimetres depending on where the product was made.
Using the results
Treat the tile count as a shopping figure, not a guarantee: order it all in one batch so the colour matches, round up to whole boxes, and keep a few spares for future repairs. The number here tells you how much to buy; the surface preparation, the adhesive and grout coverage, and any waterproofing in a wet area are the parts that decide whether the finished tiling lasts — check each product's stated coverage and the rules that apply where you are.