Tile Calculator - Calculate Exact Tile Quantities for Your Project

Calculate exactly how many tiles you need for your room with our free tile calculator. Get precise measurements including waste allowance for cuts, grout spacing, and installation. Perfect for bathroom, kitchen, and floor tile projects.

Calculate Tiles Needed for Your Room

Tile Size:

Area to Cover:

Gap Size:

tile grout spacing, use negative value for overlaps.

Box Size (optional):

tiles per box

Price (optional):

Results

 

 

Complete Guide: How to Calculate Tiles Needed

Step 1: Measure Your Room

Accurate measurements are crucial for calculating tile quantities. Here's how to measure different room types:

  • Rectangular Rooms: Measure length and width in feet or meters
  • L-Shaped Rooms: Break into two rectangles, measure each separately, then add areas
  • Irregular Rooms: Divide into rectangles, measure each section, sum the areas
  • Bathrooms: Don't forget to measure shower areas and backsplashes separately

Step 2: Choose Your Tile Size

Select the size of tiles you plan to use. The tile size you choose can significantly impact your room's appearance and installation complexity:

  • Large Tiles (18" x 18" or larger): Create a more spacious feel, fewer grout lines, ideal for larger rooms
  • Medium Tiles (12" x 12"): Versatile size, good for most rooms, standard installation
  • Small Tiles (6" x 6" or smaller): Perfect for detailed patterns, backsplashes, and small spaces
  • Rectangular Tiles: Can create the illusion of a longer or wider space depending on orientation

Step 3: Account for Waste and Pattern Complexity

Always add extra tiles to account for various factors:

  • Standard Layout: Add 10% extra tiles
  • Diagonal Layout: Add 15% extra tiles
  • Complex Patterns: Add 15-20% extra tiles
  • Herringbone Pattern: Add 20% extra tiles
  • Mosaic Tiles: Add 15% extra tiles

Step 4: Consider Grout Spacing

Grout spacing affects both aesthetics and tile quantity:

  • Standard Spacing: 1/8" to 1/4" for most tiles
  • Large Format Tiles: 1/4" to 3/8" spacing recommended
  • Mosaic Tiles: 1/16" to 1/8" spacing
  • Outdoor Tiles: Wider spacing (1/4" to 1/2") for better drainage

Frequently Asked Questions About Tile Calculation

How do I measure an irregularly shaped room?

Break the room into rectangular sections, measure each section separately, and add the areas together. For curved walls, use a flexible measuring tape and approximate the area using the largest rectangle that fits within the curve.

What's the best waste percentage to use?

10% is standard for most projects. Use 15% for complex patterns or diagonal layouts. For herringbone or other intricate patterns, consider 20% waste. Always round up to the nearest full box of tiles.

How do I calculate for different tile sizes?

Enter the length and width of your tile in inches (or centimeters). For rectangular tiles, use the actual dimensions. The calculator will automatically convert to square feet and calculate the number of tiles needed.

Should I buy extra tiles for future repairs?

Yes, it's recommended to keep 5-10% of your tiles for future repairs. Store them in a dry place with the original packaging. This ensures you'll have matching tiles if any need replacement.

How do I calculate tile costs?

Enter the price per tile or per box in the calculator. The tool will automatically calculate the total cost including waste. Don't forget to factor in additional costs like grout, mortar, and installation tools.