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Tile Calculator

Calculate the number of tiles and grout bags needed for a floor or wall, including a configurable waste percentage.

Length of the area to tile in feet
Width of the area to tile in feet
Select tile size — value is sq ft per tile
10
Extra tiles to account for cuts and breakage (%)

Results

Tiles Needed88 tiles
Total Area80.00 ft²
Grout Bags (25 lb)2 bags

📖What is it?

The Tile Calculator tells you exactly how many tiles and bags of grout to purchase for a floor or wall project. It accounts for a user-defined waste factor to cover breakage, edge cuts, and future repairs.

🎯How to use

1. Enter the length and width of the area to be tiled. 2. Select your tile size from the dropdown. 3. Set the waste factor — use 10% for simple rectangular layouts, 15–20% for diagonal patterns or complex rooms. 4. The result shows the total tile count and grout bag estimate.

💡Example scenario

Tiling a 10 × 8 ft bathroom floor with 12×12 tiles at 10% waste: area = 80 ft². Tiles = ceil(80/1 × 1.10) = 88 tiles. Grout = ceil(80/50) = 2 bags.

🏆Pro tip

Always buy at least 10% extra tiles and store them — tile dye lots change, and a perfect replacement match years later can be impossible to find. Diagonal installation adds roughly 15% waste due to corner cuts.