How Much Tile Do I Need for a 10x12 Bathroom?
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.
1Calculate Your Floor Area
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.
2Account for Waste Factor
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:
Straight / Grid Pattern
Simple layout with minimal cuts
Brick / Offset Pattern
Staggered rows, moderate cuts
Diagonal / Herringbone Pattern
Complex cuts at edges
3Tile Count by Common Sizes
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 |
4Don't Forget Wall Tile
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:
5Cost Estimates
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):
Budget Ceramic
$1–$3 per sq ft
Mid-Range Porcelain
$3–$8 per sq ft
Premium Natural Stone
$8–$20+ per sq ft
These estimates cover tile material only. Installation labor, underlayment, grout, and other supplies are additional costs.
Pro Tips
- Always round up when buying tiles — it's better to have extras for future repairs
- Check tile lot numbers to ensure consistent color across boxes
- Larger tiles can make a small bathroom appear more spacious
- Consider using a tile calculator for precise cuts and pattern-specific waste estimates
- Measure your room in multiple spots — walls are not always perfectly square
- Account for grout lines — they reduce the number of tiles slightly but affect layout
Get Precise Tile Calculations
Skip the manual math. Use our professional tile calculator to get exact quantities, cutting estimates, and layout visualizations for your bathroom project.