Tile Calculator

Add at least 10% for a standard straight lay pattern. Add 15% for a diagonal (45 degree) pattern, and 20% or more for complex patterns or rooms with many angles.

Divide the room into rectangular sections, calculate each area separately, then add them together. Always round up to avoid running short.

Larger tiles (12x12 or bigger) can actually make a small room look larger because there are fewer grout lines. However, very large tiles require a very flat and level subfloor.

Subtract those areas from your total room area, but still buy the full calculated amount since you will need extra pieces to cut around obstacles.

Yes, buy at least 10% extra and store them. If a tile cracks years later and the product is discontinued, matching tiles will be impossible to find.

Tiles are usually sold by the box or by the piece. Box coverage varies by manufacturer and tile size. Check the box label for square footage coverage per box.