Tile Calculator
Box count from coverage math — not an install bid. Click any i for detail.
Takeoff
Area (sq ft)
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Area
Floor or wall area after subtracting big openings if you want a tighter count. |
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Tile width (in)
i
Tile width
Nominal face width in inches. |
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Tile height (in)
i
Tile height
Nominal face height. 12×24 is 12 by 24. |
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Grout joint (in)
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Grout
Typical floor joint 1/8 in; mosaics often 1/16. |
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Waste (%)
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Waste
Cuts, breaks, and extras for later repairs. 10% is common; diagonals and mosaics need more. |
How to use this calculator
- Enter the area in square feet.
- Enter tile face size in inches.
- Set grout width.
- Add waste, then round up to whole tiles / boxes.
Results explained
Each module is (tile + grout) in feet. Count = area ÷ module, then × (1 + waste%). Distinct from tile installation cost.
Quick reference: tile count
Buy extra from the same dye lot. Matching later is hard.
| Item | Detail |
|---|---|
| 12×12 + 1/8 grout | ≈ 1.02 sq ft per module |
| Rectified 12×24 | Fewer joints, same waste idea |
| Diagonal layout | Raise waste toward 15%+ |
| Labor? | See tile installation cost |
Sheet mosaics: enter the sheet size, not each 1-inch chip.
How the estimate is built
module sq ft = ((W+grout)/12) × ((H+grout)/12). order = ceil( area / module × (1 + waste%) ).
Example scenario
120 sq ft of 12×12 with 1/8 in grout and 10% waste → order about 130 tiles.
FAQ
Install price?
Use the tile installation cost calculator.
Heated floor?
Count is unchanged; labor and membrane are extra on the cost page.
Hex tile?
This page is rectangular faces. Approx with the bounding width × height.