About this tool

Compute surface, tile count and cut margin in under 10 seconds.


Room
Tile
Area
m²
Tiles required
incl. for margin
Margin included
%
Enter the dimensions to see the result.

Good to know :

This answer helps you understand a topic or make an estimate, but it is not a substitute for professional advice. For any important decision regarding your health, finances, rights, safety or administrative procedures, please consult an official source or a qualified specialist.

Yoann Begue
Created by Yoann Begue Last updated on 27/05/2026

Go deeper

Why this calculator

Skip the spreadsheet. Give room and tile dimensions, get a clean result: surface, tile count, cut margin included.

How it works

Surface = length × width. Tile count = surface / tile size, with an overage (10% default, 15% diagonal).

Tips

  • Room in meters, tiles in centimeters.
  • Add 10-15% for cuts and breakage.
  • Order full boxes.

FAQ

How much cut margin?

Expect 10% straight, 15% diagonal, 20% with many angles.

Multiple rooms?

Yes, compute per room and add up. A multi-room version is coming.

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