Tile Calculator
Count the tiles and boxes for a floor or wall from its size, the tile size and the grout gap.
Tiles needed
130
- Area
- 120 ft²
- Tiles per sq ft
- 0.979488
- Boxes
- 13
Material counts are estimates — check with your supplier and local code before you buy.
Show the work
Area
A = length × width
10 × 12 = 120 ft²
How many fit in a square foot (144 in²)
per ft² = 144 ÷ ((tile length + grout) × (tile width + grout))
144 ÷ ((12 + 0.125) × (12 + 0.125)) = 0.979488
Tiles, plus waste, rounded up
count = ⌈area × per ft² × (1 + waste ÷ 100)⌉
⌈120 × 0.979488 × (1 + 10 ÷ 100)⌉ = 130
How it works
Tiles per ft² = 144 ÷ ((tile length + grout) × (tile width + grout)); tiles = area × tiles per ft² × (1 + waste)
Questions
- How does the tile calculator work?
- Tiles per ft² = 144 ÷ ((tile length + grout) × (tile width + grout)); tiles = area × tiles per ft² × (1 + waste).
- What do I need to enter?
- Area length, Area width, Tile length, Tile width, Grout gap, Extra for waste, Tiles per box. Optional fields can be left blank.
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