Tile Grout Calculator
Enter the tiled area, the grout product coverage in kg/m², and a waste percentage to estimate the grout needed.
| Result | Base quantity (kg) | Waste quantity (kg) | Needed quantity (kg) | Exact quotient | Whole quantity (kg) |
|---|
A QUICK WALKTHROUGH
How to use this tool
- Enter the tiled area in m².
- Enter the selected product coverage in kg/m² and a waste percentage.
- Review the rounded-up grout estimate in kilograms.
Formula and scope
Estimated grout kg = ceil(tiled area m² × product coverage kg/m² × (1 + waste%/100)). The estimate is rounded up to a whole kilogram.
Coverage varies
Actual coverage depends on tile dimensions, joint width and depth, and the grout product. Check the product instructions. Package sizes and pack rounding are not included.
Local processing
Inputs are calculated in your browser and are not uploaded. This is an informational estimate, not a product specification or professional advice.
GOOD TO KNOW
Common questions
How do I choose coverage?
Use the coverage value for your specific grout product and installation, accounting for tile and joint dimensions.
Does this account for package sizes?
No. It rounds the estimate up to a whole kilogram; check available package sizes separately.
Are my inputs uploaded?
No. The calculation runs locally in your browser.