Tile Calculator
Estimate how many tiles you need to cover a floor or wall, accounting for the grout gap between tiles and a 10% cutting-waste allowance. Results include the exact tile count, boxes to buy for your per-box quantity, and optional total cost.
TheCalculators — Tile Calculator
Printed thecalculators.com
Tiles Needed (incl. 10% waste)
106 tiles
96 tiles exact + waste — about 11 boxes of 10
Tile estimate
- Area
- 100 sq ft
- Tile Size
- 12 × 12 in
- Effective Pitch (tile + gap)
- 12.25 × 12.25 in
- Coverage per Tile
- 1.0421 sq ft
- Exact Count
- 96
- Whole Tiles
- 96
- With 10% Waste
- 106
- Boxes
- 11 × 10 tiles
Buy list by box size
The 10% waste allowance covers cuts around edges, breakage and future repairs — use 15–20% for diagonal patterns or very small rooms. Grout lines from 1/16 to 1/2 in are typical.
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Formula
tiles = area ÷ ((tile L + gap) × (tile W + gap)) · boxes = ⌈tiles × 1.10 ÷ tiles-per-box⌉
Pro tips
- • Rectified tiles allow 1/16 in grout lines; irregular tiles need at least 1/4 in.
- • Buy all tiles from one batch — dye lots vary between production runs.
FAQ
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