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A complete guide to calculating tile quantities for a standard 10x12 foot bathroom, covering floor tile, wall tile, waste factors, and cost estimates to help you plan your renovation project.
For a 10×12 foot bathroom floor, you need approximately 120 square feet of tile. With a standard 10% waste factor, plan to purchase about 132 square feet of tile.
The basic calculation for a rectangular bathroom is straightforward:
This gives you the base area. However, most bathrooms have fixtures like a vanity, toilet, or bathtub that reduce the actual tiling area. You may subtract these areas if you don't plan to tile under them, but many professionals recommend tiling the full floor for a cleaner finish and easier future renovations.
Always order more tile than your exact measurement. Tile cuts, breakage, and pattern alignment all require extra material. The waste factor depends on your chosen pattern:
Simple layout with minimal cuts
Staggered rows, moderate cuts
Complex cuts at edges
The number of individual tiles depends on the tile size you choose. Here are the approximate counts for a 10×12 bathroom floor (132 sq ft with 10% waste):
| Tile Size | Sq Ft per Tile | Tiles Needed |
|---|---|---|
| 6×6 inches | 0.25 sq ft | ~528 tiles |
| 12×12 inches | 1.0 sq ft | ~132 tiles |
| 12×24 inches | 2.0 sq ft | ~66 tiles |
| 18×18 inches | 2.25 sq ft | ~59 tiles |
| 24×24 inches | 4.0 sq ft | ~33 tiles |
If you're tiling bathroom walls (for a shower surround or wainscoting), you'll need additional tile. A typical shower surround in a 10×12 bathroom might cover:
Tile costs vary widely based on material, quality, and style. Here are typical price ranges for a 10×12 bathroom floor (132 sq ft including waste):
$1–$3 per sq ft
$3–$8 per sq ft
$8–$20+ per sq ft
These estimates cover tile material only. Installation labor, underlayment, grout, and other supplies are additional costs.
Skip the manual math. Use our professional tile calculator to get exact quantities, cutting estimates, and layout visualizations for your bathroom project.
Written by the TilePro Calculator Team
Professional tile layout tools and guides since 2026