Free calculator

Tile calculator

Calculate pieces and full boxes from the area, tile size, waste allowance and box price.

✓ Full boxes✓ Waste included✓ Indicative cost
Your inputs

Area, tile and box

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Indicative diagram of this calculator inputs
Calculate area and tile quantities, including allowance for offcuts.

How we calculate the boxes

We add the waste allowance to the area, calculate the area of each tile and round the required number of pieces up. Then we convert the pieces into full boxes.

Area × (1 + waste) ÷ area of one tile

Tile size changes the result

Enter the actual tile dimensions and pieces per box. Two 60 × 60 cm products may have different packaging.

Buy the whole batch at once

Shade and calibre can vary between batches. Keep a few tiles for future repairs.

Why tile waste is more than a simple percentage

The calculator adds a waste allowance to the measured area, but the right margin depends on layout. Straight installation in a simple rectangular room usually wastes less than diagonal patterns, niches, columns or many edge cuts.

Calculate each surface before combining them

For bathrooms and kitchens, measure walls and floors separately. Openings can reduce area, but small cut pieces around windows, doors and fittings may still create waste, so do not assume every opening translates directly into saved material.

Boxes, shade and calibre matter

Tiles are bought in complete boxes, so the purchased area can exceed the theoretical requirement. Where the manufacturer uses shade, calibre or batch identifiers, order the job together and check the boxes before installation.

For a step-by-step quantity method, see how to calculate tiles. If you are still choosing the material, read how to choose bathroom and kitchen tiles.

Editorial review: 11 Oct 2026. Keep a small number of spare tiles for future repairs when matching may be difficult.

[executed on device: Jaime (5124b6c9-376b-492f-9fed-bcf2d94f742b)]