Tile Calculator
Calculate tiles needed for any room with different layout patterns. Supports grid, brick, diagonal, and herringbone layouts with automatic waste factors.
Tile
Results update instantly as you type
Enter Values
Total Cost
$238.00
Layout Note
Standard grid is the most efficient layout
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68
Tiles Required
120.0 sq ft
Room Area
12 x 10 ft
Dimensions
12 x 24 in
Tile Size
Waste Factor by Layout
Total Cost
$238.00
Layout Note
Standard grid is the most efficient layout
Pro Tip
Always order 1-2 extra boxes for future repairs
The Formula
Tile quantity is calculated from room dimensions, tile size, and expected waste from the chosen layout pattern.
Variable Definitions
Waste Factor
10% for grid/brick, 15% for diagonal, 20% for herringbone.
Tile Area (sq ft)
(Tile Length in x Tile Width in) / 144
How to Use This Calculator
- 1
Enter the room length and width in feet.
- 2
Enter your tile dimensions in inches.
- 3
Choose the layout pattern.
- 4
Optionally override the waste percentage.
- 5
Add price per tile for cost estimate.
Different layouts produce different waste percentages — always buy extra
Understanding the Concept
Calculating tile quantities correctly is essential for any tiling project. Different layout patterns produce different amounts of waste due to edge cuts. Grid layouts are most efficient while herringbone produces the most waste. Always buy extra tiles and keep spares for future repairs. Practical example: tiling a 12x10 foot room (120 sq ft) with 12x24 inch tiles laid in a brick pattern. Each tile covers 2 sq ft, so you need at least 60 tiles. With the brick pattern 10% waste factor, you actually need 66 tiles, which means 7 boxes (assuming 10 tiles per box). Edge cases: rooms with alcoves, bay windows, or multiple corners require additional waste because more complex cuts are needed. For large-format tiles (oversized 24x48 inches), waste can be higher because a miscut costs more material. When tiling over radiant heating systems, use flexible thin-set mortar and account for expansion gaps — the tile layout may need slight adjustments around thermostat sensors. Always order an extra box beyond the calculated amount and store it in case of future breakage or if the tile line is discontinued.
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