Tile Calculator
Calculate tiles, boxes, and cost for floors, walls, backsplashes. Configurable tile size, box quantity, and waste percentage.
Inputs
Result
Tiles
132
Boxes
14
Coverage
120 ft²
- Tile size
- 12"
- Waste
- 10%
Waste default: 10% — TCNA Handbook recommends 10% waste for standard layouts, 15% for diagonal.
Diagram
Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.
Formula
Tiles = ceil(area × (1 + waste) ÷ tile area)
Related tools & materials
Calculators
Don't forget
- Thin-set
- Grout
- Tile spacers
- Backer board
- Sealer
Frequently asked questions
10% for standard installations, 15% for diagonal layouts, 20% for complex patterns.
Cite this page
Cosyslabs. (2026). Tile Calculator. Rough Estimator!. https://roughestimator.com/tile-calculator
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