Calculate Tile Quantity for Your Room
Enter your room size and tile size — in feet or metres — and get the tiles required, the wastage-adjusted quantity and the estimated number of boxes. For wall areas, use the wall width and height as length and width.
How the Tile Calculation Works
The calculator multiplies room length by room width to get the floor area in square feet, converts your tile size into square feet, and divides the two — rounding up, because part tiles still come out of whole tiles. It then adds your wastage percentage for cutting, fitting around corners and breakage, and finally divides by tiles per box to estimate boxes, rounding up again.
Measuring Tips From Tilers
- Measure the room at its longest and widest points; few rooms are perfectly square.
- For L-shaped rooms, split the floor into two rectangles and add the areas.
- Skirting and border tiles are extra — mention them in your quote request.
- Keep the calculator result with your enquiry so your quotation quantities can be checked against it.
Calculator FAQs
How much wastage should I add when calculating tiles?
Add about 10 percent for straight layouts in rectangular rooms. Diagonal layouts, patterned designs and rooms with many corners need 12 to 15 percent. It is always cheaper to have a few tiles left over than to re-order a different batch later.
Why does the calculator round tiles and boxes up?
Tiles cannot be bought in fractions for a specific area, and part-used boxes are normal on every job. Rounding up makes sure the tiler never stops mid-room waiting for material, and leftover tiles become your spare stock for future repairs.
Can I calculate wall tiles with this calculator too?
Yes — for a wall, use its width as the length and its height as the width. Calculate each wall separately if heights differ, subtract large openings like doors and windows, then add the areas together before ordering.