Floors & surfaces · Tool 03

Tile calculator

From square metres to whole boxes. Turn your measurements into tiles and boxes.

Your measurements

Product details & allowances

Enter decimal metres or feet. Product sizes use the same length unit. Price 0 means not priced.

How this calculation works

Tiles = round up(area ÷ ((tile length + grout) × (tile width + grout)) × (1 + waste / 100)). Boxes = round up(tiles ÷ tiles per box).

A worked example

For 12 m², 0.3 × 0.3 m tiles, zero grout and 10% allowance: 12 ÷ 0.09 × 1.1 = 146.667, rounded to 147 tiles. With 10 tiles per box, buy 15 boxes (150 tiles).

Before you buy

The grout-adjusted module is an area estimate, not a cutting map. Perimeter cuts, orientation and reuse affect actual counts. Set grout to zero for a more conservative area estimate. Layout presets only change the editable allowance; adhesive and grout quantities are separate.

A few useful answers

Does a diagonal layout need more tiles?

It often creates more offcuts. The 15% preset is a planning assumption, not a guaranteed requirement. Check your layout and supplier recommendation.

Are my results saved?

Use Add to project to keep material estimates in your browser. You can copy results or print them at any time. No account or remote project storage is used.

Are the defaults product recommendations?

No. They are transparent example assumptions. Replace coverage, sizes, prices and allowances with your actual product details.