Tile Calculator: Count Tiles for Any Room
Count exactly how many floor or wall tiles you need with waste factor — and avoid the expensive mistake of running short mid-project.
Nothing derails a tiling project like running out of tiles in the middle of a room — especially if your specific tile has been discontinued. Our Tile Calculator ensures you order the right amount the first time, with the right waste factor built in.
Formula: Tiles = (Area ÷ Tile Area) × Waste Factor (1.10 for straight lay)
Choosing the Right Waste Factor
- 10%: Straightforward rectangular room, grid pattern
- 15%: L-shaped rooms, diagonal patterns
- 20%: Complex layouts, herringbone, beginner installer
Always store 5–10 tiles from your batch for future repairs. Tile colors vary between production batches, and replacements may not match perfectly.
Popular Tile Sizes and Where to Use Them
Overview of tile calculator: count tiles for any room
Overview of tile calculator: count tiles for any room
- 12×12: Versatile, works anywhere, easy to cut
- 24×24: Modern kitchens and large bathrooms — fewer grout lines
- 6×6: Backsplashes and small bathrooms
- 3×6 subway: Kitchen backsplashes and shower walls
- 18×18: Great for medium-sized rooms, semi-formal look
Count Your Tiles Now
Enter room size, tile size, and waste factor to get your exact count.
See also: Ultimate Guide to DIY Material Calculators for all project planning tools.
Project planning and measurement