Enter your Tile Length, Tile Width, Tile Thickness, Joint Width, Installation Area, and Waste Factor into the Grout Calculator to find exactly how much Grout you Need — plus your Total Tiles Needed, Grout Volume, and Grout with Waste Factor so you never come up short mid-project.
Grout Needed
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Tiles per Square Foot
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Total Tiles Needed
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Grout Volume
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Grout with Waste Factor
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Measure the actual tile surface, not including any beveled edges. Use a ruler or measuring tape to get length and width in inches. Thickness should be measured from the back of the tile to the surface.
Most ceramic tiles use 1/8 inch (0.125 inch) joints, while larger tiles may use 1/4 inch joints. Natural stone tiles often require wider joints of 1/4 to 3/8 inches.
A waste factor accounts for mixing losses, cleanup, and potential mistakes during installation. It's better to have slightly more grout than to run short during your project.
Most cement-based grouts weigh approximately 0.06 to 0.08 pounds per cubic inch. This calculator uses an average density for standard sanded grout.
Yes, this calculator works for most cement-based grouts including sanded and unsanded varieties. Epoxy grouts have different coverage rates and should use manufacturer specifications.
For mixed tile sizes, calculate grout needed for each size separately using their respective areas, then add the totals together for your complete project requirements.
Break complex areas into rectangular sections, calculate each section separately, then sum the results. Don't forget to subtract areas for fixtures or openings.