Tile Calculator

How many tiles do you need for any floor or wall area? Calculate by room size and tile size, with a built-in wastage allowance for cuts.

Area length (m)

Area width (m)

Tile size

Laying pattern

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Fill in the details to get your calculation.

Tile adhesive and grout — buy in 20kg bags for floor tiles and 10kg for walls.

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How This Is Calculated

Tile count = area divided by tile area, rounded up. Wastage is added for cuts at edges and corners. Diagonal patterns need significantly more wastage as each edge tile must be cut at 45°. Always order from the same batch reference to ensure colour consistency.

Measure each wall section and the floor separately. For walls, use net area (excluding door, window and bath/shower openings). Add 10–15% wastage. Calculate tiles for each surface separately as cuts may create useful off-cuts that can be used on adjacent walls. Always buy 10% extra — off-cuts from one wall rarely fit the next perfectly.