Tile Calculator

The following tool estimates the total number of tiles necessary to cover a floor, roof, wall, or any other surface. It also considers the gap or overlap between tiles for better accuracy.

Result 💾 save
Tiles Needed: 0 Pieces
Boxes Needed: 0 Boxes
Total Area: 0 meter²
Purchase 5% - 10% more (0 - 0 tiles or 0 - 0 boxes) for cutting, waste, and possible future repairs.
Tile Size: Length
Width  
Area to Cover:
Length
Width  
Gap Size: tile grout spacing, use negative value for overlaps.
Box Size (optional): tiles per box
Price (optional): $

Understanding Tile Gaps (Grout Size)

Floor or wall tiles are typically installed with gaps between the tiles because the average tile may look quite similar to the next tile, but they are often not uniform in shape and size, and would not fit properly if installed without any gaps. These gaps are most commonly filled with grout, and as such, are often referred to as grout size or grout lines.

Grout is a form of concrete, and the gap between tiles can range from anywhere between one-sixteenth of an inch to half an inch in size. Different sized tiles, materials, and design needs all affect the size of the gaps.

Although it is typically more difficult to have small gaps between tiles due to a lack of uniform shape and size, the use of rectified tiles (tiles that undergo additional processing to ensure they are uniform) can allow for smaller spacing, though at an additional cost. For more uniformly cut tiles such as granite, smaller grout spacing can result in less visibility of grout lines between each tile.

In some cases, such as with roofing tile or the wood siding of a wall, rather than having a gap between them, tiles overlap to prevent leakage. The tile calculator can account for both of these situations. Enter a positive value if there is a gap between the tiles being used, or a negative value if the tiles overlap.

Tile Installation Options

Tile Size

Tile size can range anywhere from smaller mosaics that are 3/8", to 24" × 48" slab tiles and everything in between. Square sizes (same width and length) are the most popular, accessible, and easiest to install. While straight edge tiles (rectangular, square, parallelogram) are the most common, unique tile shapes also exist, though installation is not as easy.

Large tile sizes can make smaller rooms appear bigger, as well as more open and clean because there are fewer grout lines. However, installing larger tiles results in more wastage, while using smaller tiles can help add texture to a room.

Tile Material

There are a number of different classifications of tiles, including ceramic, porcelain, glass, quarry, and stone.

  • Ceramic and porcelain: The most cost-efficient and come in a variety of different styles.
  • Glass tiles: While not appropriate for flooring because they crack under pressure, they are visually unique and interesting; they are most commonly used for kitchen and bathroom backsplashes.
  • Quarry tiles: Have rough surfaces that are good for floors that require grip, and are commonly used outdoors and in restaurant kitchens.
  • Stone tiles: Includes marble and granite, which provide unique and natural stone patterns, textures, and colors that are difficult to achieve using ceramics. They also offer the illusion of blending into grout edges, giving off an overall uniform look.

Layout Pattern

There are many different patterns used when installing tiles.

  • Linear Grid: The most common pattern used, utilizing square or rectangular tiles.
  • Diamond: A pattern involving angled squares or rectangles.
  • Running Bond: Layouts (like those used with brick walls) involve offset rows or columns of tiles, usually with a 2:1 length to edge ratio. Running bonds generally use about 10% more material.
  • Herringbone: Involves aligning tiles in angled patterns, usually 45 or 90 degrees. Similar to running bond layouts, herringbone layouts use more material than linear layouts, so it is crucial to purchase an adequate waste buffer.