Grout Quantity Calculator
Calculate the grout you need based on tile format, joint width and depth – buy exactly the right amount.
The grout quantity needed depends on tile size, joint width and depth, and the area to be grouted. This calculator uses the common tile-industry rule of thumb.
Pro tips
- Larger tiles need noticeably less grout than small-format tiles.
- Always plan a little reserve – grout bags are hard to split exactly.
Frequently Asked Questions
How much grout do I need per square meter?
It depends on tile size, joint width and depth – smaller tiles and wider joints need noticeably more grout per m².
What joint width is typical for floor tiles?
Usually 2-5 mm for rectified tiles, 4-8 mm for classic tiles – the exact recommendation is usually printed on the tile packaging.
How long does grout need to dry?
Usually 24-48 hours before it can be walked on; it's often fully cured and load-bearing only after a few days.
What's the difference between cement-based and epoxy grout?
Cement-based grout is cheaper and easier to apply; epoxy grout is more resistant to stains and chemicals but more demanding to install.