Tile Calculator

Calculate exactly how many tiles you need for your room, including waste allowance for cuts and installation. Our free calculator helps you plan your tiling project with precision, whether you're tiling a bathroom, kitchen, or any other space.

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

 

 

How to Calculate Tiles Needed

Step 1: Measure Your Room

Measure the length and width of your room in feet (or meters). For irregularly shaped rooms, break them down into rectangular sections and measure each section 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:

  • Large tiles (18" x 18" or larger / 45.7 x 45.7 cm) create a more spacious feel and work well in bigger rooms. They also mean fewer grout lines, creating a cleaner look.
  • Small tiles (12" x 12" or smaller / 30.5 x 30.5 cm) are ideal for smaller spaces and can make a room feel more detailed and intricate. They're also better for creating complex patterns.
  • Rectangular tiles can be used to create the illusion of a longer or wider space depending on their orientation.
  • Consider the room's proportions - larger tiles in a small room can make it feel cramped, while small tiles in a large room might look too busy.

Step 3: Account for Waste

It's recommended to add 10% extra tiles to account for:

  • Cutting and trimming
  • Breakage during installation
  • Future repairs
  • Pattern matching

Step 4: Calculate Total Tiles Needed

The calculator will determine:

  • Total room area in square feet (or square meters)
  • Number of tiles needed without waste
  • Number of tiles needed including waste

Frequently Asked Questions

How do I measure an irregularly shaped room?

Break the room into rectangular sections, measure each section separately, and add the areas together.

What's the best waste percentage to use?

10% is standard for most projects. Use 15% for complex patterns or diagonal layouts.

How do I calculate for different tile sizes?

Enter the length of one side of your square tile in inches (or centimeters). For rectangular tiles, use the average size.