Mosaic · Free tool

Grout Calculator

Use the density and coverage guidance for your chosen grout.

  1. 01 Step 1. Enter the total tiled surface area in square feet.
  2. 02 Step 2. Enter the tile dimensions, joint width and joint depth in inches.
  3. 03 Step 3. Enter the mixed grout density from its technical sheet and a waste percentage. Compare the result with the manufacturer’s coverage chart.

Free · runs in your browser · nothing is uploaded

Estimated grout 1.22 lb
Grout Calculator

This estimates the volume between a repeating grid of rectangular tiles: surface area × [1 − tile area ÷ repeating cell area] × joint depth. It then applies the mixed density and waste allowance. Density is entered in pounds per cubic foot.

It does not account for highly irregular tesserae, deep voids, adhesive rising into the joints or special grout systems. Use the manufacturer’s product calculator when available. The default density is an editable example, not a claim about every product.