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Key Features
Instant Calculation
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Tile is sold by the piece or by the box, and the exact count depends on both the area you're covering and the size of tile you've chosen.
This calculator finds exactly how many tiles you need for a floor or wall, including a waste allowance for cuts.
How it works
Enter the room's length and width, the tile's length and width in inches, and a waste allowance percentage. The calculator finds the room area, divides it by the area of a single tile, and pads the result with the waste allowance to account for cuts around edges and corners.
- Enter room length (ft).
- Enter room width (ft).
- Enter tile length (in).
- Enter tile width (in).
- Enter waste allowance (%).
- Click Calculate to see your results.
Examples
An 8×10 ft bathroom floor
An 80 sq ft floor with 12×12 inch tiles and a 10% waste allowance needs 88 tiles.
Who should use it
- Planning a DIY bathroom, kitchen, or entryway tile installation.
- Estimating tile material costs before starting a renovation.
Industry applications
- Residential tile installation
- Home renovation and remodeling
Advantages
- Handles both square and rectangular (non-square) tile sizes.
- Rounds up to whole tiles, accounting for a waste allowance automatically.
Limitations
- Does not calculate grout quantity separately from the waste allowance.
Common mistakes to avoid
- Forgetting that tile dimensions are usually given in inches, not feet — this calculator handles that conversion automatically.
- Underestimating the waste allowance for small bathrooms or rooms with many corners, which generate proportionally more cuts.
Best practices
- Buy tile from the same production lot/batch when possible, since color and shade can vary noticeably between different manufacturing runs.
Tips
- Order all your tile in one purchase from the same lot number when possible, since even the same product code can shift slightly in color between production runs.