60 · Calculators

Tile Calculator

Enter the area’s size and your tile size to see how many tiles, and boxes, to buy.

Units

Room size in metres or feet; tile size in centimetres or inches.

Tiles needed

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How to use the tile calculator

  1. Enter the length and width of the floor or wall.
  2. Enter the tile’s length and width.
  3. Choose how much extra to allow for cuts.

Allowing for waste

Tiles get cut at edges and some break. Allow about 10% extra for a straight layout and 15% for diagonal or patterned ones. Keep a few spares from the same batch for future repairs.

Examples

4 × 3 m floor, 30 × 30 cm tiles, 10% extra

147 tiles

10 × 8 ft floor, 12 × 12 in tiles, 10% extra

88 tiles

Questions

Does it account for grout lines?

No. Grout gaps are small and slightly reduce the count, which the waste allowance covers.

What about an L-shaped room?

Split it into rectangles, calculate each, and add them together.