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Tile calculator (m² + waste)

Estimate tile quantity from room size + tile size, then add a waste percentage. Result is rounded up.

Enter room dimensions and tile dimensions. Optionally add a waste percentage (cuts/breakage).

Length of the area to tile.
Width of the area to tile.
Tile size in centimeters.
Tile size in centimeters.
Typical: 5–15%.
Simplified estimate (no pattern layout). Consider extra waste for diagonal patterns or complex cuts.

How to estimate tiles (m²) and waste

This tile calculator estimates how many tiles you need from the room surface area (length × width) and the tile surface area. The result is then increased by a waste percentage to cover cuts, breakage, and offcuts — and rounded up to the next whole tile.

A typical waste allowance is 5–10% for simple rectangular rooms and straight layouts. Consider 10–15% (or more) for diagonal patterns, small rooms, many corners, or complex cuts around pipes and door frames.

Quick checklist before ordering:

  • Verify units: room in meters (m), tiles in centimeters (cm).
  • Check if tiles are sold per tile or per box (convert if needed).
  • Add extra waste if you plan a pattern (herringbone/diagonal) or have many cuts.