Tile Calculator
Work out how many tiles and how many boxes you need for a floor or wall. Tile size, grout gap, waste allowance and tiles-per-box are all configurable — suitable for ceramic, porcelain, stone or large-format tile.
Tile Calculator
Flooring & Tiling
ft²
in
in
in
Informational — affects layout, not the conservative count.
%
Tiles needed
30tiles
Boxes to buy
5× 6 tiles
Tile size
24 × 24 in
Tile face area
4 ft² · 0.3716 m²
Calculation breakdown
- 1Surface + waste:
10.03 m² × 1.10 = 11.04 m² - 2Tiles:
⌈11.04 ÷ 0.3716⌉ = 30 - 3Boxes:
⌈30 ÷ 6⌉ = 5
Tile face area = Tile length × Tile width.
Tiles = ⌈Surface area × (1 + Waste %) ÷ Tile area⌉ · Boxes = ⌈Tiles ÷ Tiles per box⌉.
The grout gap slightly reduces the count; we conservatively ignore it (you can never have too many spares).