Calculated result
2bags
Thinset bags to order
Formula
FLOOR-THINSET-001120 ft²
Tiled area
132 ft²
Area including waste
Flooring calculator
Tile thinset calculator
Thinset or tile-mortar bag count from tiled area, selected trowel coverage and a visible mixing allowance.
Reviewed formula · v1.0.0
Project inputs
Enter field measurements. Unit conversion happens before the reviewed formula is applied.
All values can be refined when you edit the estimate. This tool does not replace field verification or local requirements.
Transparent cost view
Use visible planning values, then replace them with actual job costs before quoting.
Material cost$170
Direct cost$560
Overhead + contingency$56
Markup + tax$74
Estimated project total$690
How this calculator works
A transparent tile thinset calculator takeoff.
This calculator divides finished tile area plus a visible allowance by the coverage printed for the selected thinset bag and trowel notch.
Worked example. Example: a 12 ft × 10 ft floor is 120 ft². With 10% waste and 90 ft² per bag, the order rounds to 2 bags.
- 1. Measure the finished tiled area.
- 2. Enter coverage from the selected bag at the actual trowel notch, including back-buttering when required.
- 3. Keep grout, cement board and sealer on separate estimate lines.
Need the broader workflow? Read the flooring planning guide.
Questions
Common questions about this tile thinset calculator.
Does one bag always cover 90 ft²?
No. Coverage changes with notch size, mortar type and substrate. Use the selected product chart.
Does this include grout?
No. Use the tile grout calculator for joint volume. Thinset is the bonding mortar only.