Tile Calculator for Bathroom Floors
Most bathrooms are between 35–80 square feet. Enter your measurements below to get an exact tile count, including waste.
Tile Calculator
Find out how many tiles you need for your project, including waste.
Standard is 10%. Use 15% for diagonal patterns or complex layouts.
You'll need
0 tiles
Enter dimensions to calculate
Tips for tiling a bathroom floor
- Measure the actual floor area, not the room size — subtract for vanity, toilet base, and bathtub footprints.
- Round up to the nearest tile box. Tiles are sold in boxes, not individually.
- Use 15% waste factor if you're cutting around fixtures or doing a diagonal pattern.
- Buy from the same lot — different production batches can have slight color variations.
Common bathroom floor sizes
Here's what to expect for typical bathroom dimensions:
- Half bathroom: about 20 sq ft
- Standard bathroom: 40–60 sq ft
- Master bathroom: 80–120 sq ft
Frequently asked questions
How many 12x12 tiles for a 6x8 bathroom?
A 6x8 bathroom is 48 square feet. With 12x12 tiles (1 sq ft each) and 10% waste, you'll need about 53 tiles.
What size tile is best for a bathroom floor?
12x12 inch tiles are the most common for bathroom floors. They're easier to install than larger tiles and more forgiving with uneven floors. For small bathrooms, smaller tiles (6x6) can make the room feel larger.
Should I use a higher waste factor for bathroom floors?
Yes — bathroom floors usually require more cuts around fixtures (toilet flange, vanity base, tub edge). Plan for 15% waste rather than the standard 10%.