Calculate how many boxes of tile you need.
Enter your floor or wall area to calculate how many boxes of tile to buy, including a waste allowance for cuts.
Tile Boxes Needed
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boxes Needed = (Area × (1 + Waste %)) ÷ Coverage per Unit
This calculator adds your specified waste allowance to the raw area before dividing by coverage, ensuring you order enough to account for cuts, mistakes, and pattern matching.
A 10% waste allowance is a common industry default, but complex layouts, diagonal patterns, or a room with many corners and cutouts may need a higher allowance (15-20%), while simple rectangular rooms may need less.
10% is a common default for straightforward rectangular areas. Increase to 15-20% for complex layouts, diagonal installations, or rooms with many corners, alcoves, or obstacles.
Adjust the "Coverage per Box (sq ft)" field to match your specific product's coverage rate, found on the product packaging or manufacturer's specification sheet.
This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.