Tile Flooring Calculator
Calculate how many tiles you need for a room.
About this tool
Calculate the number of tiles needed to cover a room, based on the room's total area, the size of each tile, and a waste allowance for cuts, breakage and pattern matching.
Key Features
- Works with any tile size
- Adjustable waste allowance
- Rounds up to a full-tile count
How to Use
- Enter the room's total area.
- Enter your tile's width and height.
- Enter a waste allowance percentage.
- Click Calculate Tiles.
Benefits
- Buy the right number of tiles the first time
- Account for cutting waste around edges and corners
- Works for floor or wall tiling
Frequently Asked Questions
10% is a common default for straight-lay patterns. Diagonal layouts, herringbone patterns, or rooms with lots of corners and cutouts often need 15–20% to account for the extra cuts.
This gives you the exact tile count — tiles are usually sold by the box, so check your box coverage and round up to the nearest full box when you actually order.