Tile Adhesive Calculator
20 kg adhesive bags by trowel size and area.
An 8 mm notch lays ~3.5 kg/m². Large-format tiles need back-buttering — coverage doubles. Hollow-sounding tiles later = adhesive saved in the wrong place.
Formula
Tile Adhesive Calculator is a free tile adhesive quantity for civil engineers, contractors and quantity surveyors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Tile Adhesive Calculator
20 kg adhesive bags by trowel size and area. The calculation implements kg/m² ≈ 0.45 × notch size(mm); +10% waste (Adhesive maker coverage charts (IS 15477 class)). An 8 mm notch lays ~3.5 kg/m². Large-format tiles need back-buttering — coverage doubles. Hollow-sounding tiles later = adhesive saved in the wrong place.
How to use Tile Adhesive Calculator
- 1Enter Tiling area in m².
- 2Enter Notch trowel in mm (Mosaics 6 · ≤300 tiles 6–8 · 600 tiles 10 · large slabs 12 + back-butter).
- 3Read Adhesive needed, 20 kg bags instantly — no submit button needed.
- 4Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Tile Adhesive Calculator?
- ✓Implements the standard formula — kg/m² ≈ 0.45 × notch size(mm); +10% waste
- ✓Reference cited on-page: Adhesive maker coverage charts (IS 15477 class)
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Tile Adhesive Calculator use?+
It computes kg/m² ≈ 0.45 × notch size(mm); +10% waste, per Adhesive maker coverage charts (IS 15477 class). The formula is displayed under the result.
What should I keep in mind when using this calculator?+
An 8 mm notch lays ~3.5 kg/m². Large-format tiles need back-buttering — coverage doubles. Hollow-sounding tiles later = adhesive saved in the wrong place.
Does it include wastage?+
Yes — standard wastage/bulking factors are built in and stated in the formula line, so the quantity is an orderable number, not a bare geometric volume.
Is the Tile Adhesive Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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