Tiling

The tile calculator estimates how many tiles, how much adhesive and how much grout you need for a floor or wall. Enter the surface size and the tile dimensions to get an accurate material list including a waste allowance.

Common use cases

• Bathroom and kitchen wall tiles
• Floor tiling for living rooms and hallways
• Outdoor terrace and patio tiles
• Splashbacks and shower enclosures

How to use this calculator

1. Enter the area length and width.
2. Enter the tile length and width.
3. Press Calculate to see the number of tiles needed.
4. Review adhesive and grout quantities to finish the job.

Example calculation

For a 4 m × 3 m bathroom floor (12 m²) tiled with 30 × 30 cm tiles, you need 134 tiles (including waste), around 36 kg of adhesive and 6 kg of grout.

Frequently asked questions

How do I calculate how many tiles I need?

Divide the surface area by the area of a single tile, then add 10% for cuts and breakages.

How much tile adhesive per square metre?

Around 3 kg per m² for standard tiles with a 6 mm notched trowel; large-format tiles need more.

How much waste should I add for tiling?

Add 10% for straight layouts and 15% for diagonal or herringbone patterns.

Can this calculator handle large-format tiles?

Yes — enter the real tile size and the calculator scales the count automatically.