CalcPenguin

Tile Calculator

How many floor tiles to buy for a room, in sizes such as 2 × 2 ft and 600 × 600 mm, with extra for cutting and breakage.

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ft
ft
%

Optional: from the box label, to work out how many boxes to buy.

Tiles

47

Floor area
168 sq ft

A 14 × 12 ft floor needs 47 tiles of 24 × 24 inches, including 10% extra for cuts.

How it's worked out

  1. Floor area14 × 12 ft168 sq ft
  2. One tile covers4 sq ft
  3. Tiles with extra168 ÷ 4 × 1.1, rounded up47

How tiles are counted

Tiles = floor area ÷ area of one tile × (1 + extra), rounded up

Worked example

A 14 × 12 ft floor is 168 sq ft. With 2 × 2 ft tiles (4 sq ft each) that's 42 tiles. Adding 10% gives 46.2, so buy 47 tiles; at 4 tiles a box, 12 boxes.

Questions people ask

How many extra tiles should I buy?

About 10% for a straight lay and 15% for a diagonal pattern or a room with many corners. Keep a few spare from the same batch for repairs.

How many 2 × 2 tiles for a 12 × 14 room?

The floor is 168 sq ft and each tile covers 4 sq ft, so 42 tiles, or 47 with 10% extra.

Is a 600 × 600 mm tile the same as 2 × 2 ft?

Nearly. A 600 mm tile is 23.6 inches, covering 3.88 sq ft against 4 sq ft for a true 2 × 2 ft tile, so you need a few more.

Formula and rules last checked 25 October 2026Written and tested by the CalcPenguin teamReport a problem