How to Use This Calculator
- Enter your tile dimensions (length and width in inches).
- Choose to input room dimensions or total area to cover.
- Enter grout gap size (typical 1/8" to 1/4").
- Enter tiles per box for accurate box count.
- Click "Calculate Tiles Needed".
Calculation Formula
Effective Tile Area = (Tile Length + Gap) × (Tile Width + Gap)
Tiles Needed = Total Area ÷ Effective Tile Area
Boxes Needed = Tiles Needed ÷ Tiles per Box
Important Tips
- Always purchase 5-10% extra tiles for cutting, waste, and future repairs.
- Consider pattern layout (straight, diagonal, herringbone) which may require more tiles.
- For complex shapes, break the area into simpler rectangles and add the results.