Grout & Thinset Calculator
Estimate bags of grout and thinset for a tile job.
Use this grout and thinset calculator to estimate how many bags you need for a tile job based on tile size, joint width, and trowel size. It provides grout and thinset coverage estimates to help you plan materials before starting your tile installation.
Grout bags
2
10 lb bags
Thinset bags
2
50 lb bags
Area
100
ft²
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Recommended tools & materials
Handy picks for this project on Amazon.
Tile & Flooring Spacers
Even grout lines and gaps
View on Amazon →
Laminate Installation Kit
Tapping block, pull bar and spacers
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Notched Trowel Set
Right coverage for every tile size
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Knee Pads
Work comfortably on hard floors
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How does the grout & thinset calculator work?
Grout coverage scales with tile size and joint width. A 10 lb bag of sanded grout covers ~50 ft² of 12 in tile with a 1/8 in joint. Thinset (50 lb bag) covers ~75 ft² for 12 in tile with a 3/8 in trowel.
What else do people ask about this calculator?
How much grout for a bathroom floor?
A 60 ft² bathroom with 12 in tile and 1/8 in joints needs about 2 bags (10 lb each) of grout.
What size trowel for thinset?
1/4 in × 3/8 in square-notch for 12 in tile; 1/2 in for large-format tile 15 in or larger.
Which related calculators should I use next?
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Complete Your Tile Installation
These practical tools help you mix, apply, and finish grout and thinset more efficiently.
Goldblatt Grout Float
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Edward Tools Paddle Mixer
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NoCry Professional Knee Pads
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Paid links: as an Amazon Associate, MaterialCalc earns from qualifying purchases.