Tile calculator

Type the area, the tile size, the joint width and a margin for cuts: you get the number of tiles, boxes and the cost.

Tile calculator

m²
cm
cm
mm
%

Result

64Tiles to buy

Tiles without margin (exact value)
55
Of which spare tiles
8
Number of boxes
16
Area bought
23.04 m²
Estimated cost
576.00

Tile calculator

Inputs

Area to tile
20
Tile length
60
Tile width
60
Joint width
3
Margin for cuts and breakage
10
Tiles per box (optional)
4
Price per m² (optional)
25

How it is calculated

Each tile takes its own size plus one joint: (length + joint) × (width + joint).

Result

Tiles to buy

64
Tiles without margin (exact value)
55
Of which spare tiles
8
Number of boxes
16

How it is calculated

  1. Each tile takes its own size plus one joint: (length + joint) × (width + joint).
  2. Tiles = area ÷ space per tile, plus the margin, rounded up.
  3. If you give the number per box, we round to whole boxes. Cost = area bought × price per m².

Example

20 m² of 60 × 60 cm tiles, 3 mm joints, 10 % margin, boxes of 4: 55.0 exact tiles, 16 boxes so 64 tiles (9 spare), 23.04 m² bought, cost 576 at 25 per m².

Good to know

  • For diagonal or patterned layouts, plan 15 % margin or more.
  • Keep a few tiles from the same batch for repairs.
  • Adhesive and grout are not counted.

Sources

  • Geometry; usual margins of 5 to 15 % depending on the layout

Frequently asked questions

What is this tool used for?

Type the area, the tile size, the joint width and a margin for cuts: you get the number of tiles, boxes and the cost.

How is the result calculated?

Each tile takes its own size plus one joint: (length + joint) × (width + joint).

What should I check before using the result?

For diagonal or patterned layouts, plan 15 % margin or more.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.