Tile Calculator

Calculate tiles, grout, and materials for tiling projects

Project Details
Enter your measurements and requirements
$
Results
Calculated estimates for your project
Area0.0 sq ft
Tiles Needed (with waste)0
Thinset Bags (50lb)0
Total Cost$0.00

Additional Information

About This Tile Calculator

Our tile calculator helps you determine the number of tiles, thinset mortar, and grout needed for your tiling project. Whether you're tiling a bathroom floor, kitchen backsplash, or shower walls, this tool calculates materials based on your area and tile size with appropriate waste factors.

The calculator includes a 10% waste factor for cuts, breakage, and future repairs. Complex layouts with many cuts around fixtures or diagonal patterns may require 15-20% extra. Always keep some extra tiles for future repairs since tile colors can vary between production batches.

This tool is perfect for DIY homeowners planning tile projects, contractors preparing estimates, and anyone asking "how many tiles do I need for my bathroom?" The calculator also estimates thinset bags to help you budget the complete project.

How to Use This Calculator

Follow these steps to calculate your tile needs:

  1. Measure the length and width of the area to be tiled in feet
  2. Enter your tile size in inches (one side length for square tiles)
  3. Input the cost per tile from your supplier
  4. Review the number of tiles needed including 10% waste
  5. Note the estimated thinset bags required for installation
Frequently Asked Questions

How many tiles do I need for a 10x10 room?

A 10x10 room has 100 square feet. Using 12x12 inch tiles (1 sq ft each), you'd need 110 tiles with 10% waste. For 6x6 inch tiles (0.25 sq ft each), you'd need 440 tiles. Larger format tiles like 24x24 require fewer pieces but more precise cuts.

What size grout lines should I use?

Grout joint size depends on tile type and look: 1/16" for rectified tiles with minimal lines, 1/8" for most porcelain and ceramic, 3/16" to 1/4" for natural stone, and up to 1/2" for rustic or handmade tiles. Wider joints hide slight tile size variations and are easier for beginners.

How much thinset do I need?

A 50lb bag of thinset covers about 50-75 square feet using a 1/4" square notch trowel, or 40-50 square feet with a 1/2" trowel for larger tiles. Large format tiles (12"+) require back-buttering, using more material. Account for substrate absorption - concrete uses more than cement board.

Should I use sanded or unsanded grout?

Use sanded grout for joints 1/8" or wider - the sand adds strength and prevents cracking. Use unsanded grout for joints under 1/8" and for polished marble or soft stone (sand can scratch). Epoxy grout is more expensive but resists stains and doesn't need sealing.

Do I need to seal my tile and grout?

Natural stone (marble, travertine, slate) and cement-based grout should be sealed to prevent staining. Porcelain and ceramic tiles are typically non-porous and don't need sealing. Seal grout 24-48 hours after installation when fully cured. Reapply sealer annually in wet areas like showers.

What tools do I need for tiling?

Essential tile tools include: tile cutter or wet saw, notched trowel (size based on tile), grout float, sponge and bucket, tile spacers, level, and tape measure. A wet saw is necessary for large format tiles, L-cuts, and natural stone. Rent a professional-grade wet saw for best results.

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