calcs.homes
calcs.homes
Enter the area you are tiling and your tile size, and this tile calculator gives the number of tiles to buy — waste allowance included — along with the coverage and an estimated cost.
Estimate only — buy from the same lot and keep a few spare tiles for future repairs.
We multiply length by width for the area, add your waste allowance, then divide by the coverage of a single tile to get the tile count, rounded up. Preset sizes carry their own coverage figure; choosing “custom” uses the width and length you enter instead.
Ten percent extra is right for a straight grid on a simple rectangular room. Use 15% for a diagonal or offset layout, and 20% for a herringbone or a room with lots of jogs and niches — every angled cut leaves an off-cut you usually cannot reuse. Ordering it all at once keeps the whole job on one dye lot.
About 10% over the measured area for a standard grid, 15% for a diagonal set, and up to 20% for herringbone or a cut-up room. Keep a few spares after the job for repairs.
It varies by brand, but a carton of 12x12 in tiles is commonly 10–12 pieces (about 10–12 sq ft). Large-format 12x24 cartons are often 6–8 pieces. Check the box for its stated coverage.
For a floor, measure the open floor only. For a backsplash or wall, you can subtract large openings like a window, but leaving them in adds a bit of safety margin.