Use this calculator to plan a tile count before ordering, with the waste percentage kept fully editable.
Inputs
This topic also has a deeper guide and a printable reference pack, so you can move from the live answer into the method, assumptions, and worked examples without leaving the topic cluster.
A stronger finishing guide for paint, tiles, flooring, wallpaper, and sheet coverage, built around practical waste, cuts, pack rounding, and layout reality.
A concise room-measurement sheet covering area take-off, opening adjustments, and the handoff from geometry to coverage products such as paint, tiles, flooring, wallpaper, and sheet goods.
These are the main values the calculator uses. Keep the units consistent and, where relevant, match the assumptions explained in the related guide.
Unit: m^2
Enter the wall or floor area that will receive tile.
Unit: m^2 per tile
Use the face coverage of one tile so the count matches the size you plan to buy.
Unit: %
Add a realistic allowance for cuts, breakage, and spare tiles.
Use this page when you know the total area to tile and the coverage of each tile or tile pack and want a sensible order quantity.
The main result is the rounded-up tile count. The supporting value shows the adjusted area after waste allowance is included.
If the area to tile is 18 square metres and the waste allowance is 10%, the calculator increases the working area before dividing by the coverage of each tile.
This is a planning estimate. Complex layouts, diagonal patterns, breakages, trims, and manufacturer pack sizes can all affect the final order.
Tiles are ordered as whole pieces or packs, so the count must round up to the next full unit.
Use the Room Area Calculator to estimate room area from measured dimensions, coverage rates, or material sizes.
Use the Flooring Boxes Calculator to estimate flooring boxes from measured dimensions, coverage rates, or material sizes.
Estimate how much paint you need from the area, coverage rate, and number of coats you enter.
Use the Plasterboard Sheets Calculator to estimate plasterboard sheets from measured dimensions, coverage rates, or material sizes.