Tile Grout calculator.
Estimate filled joint volume and grout packs using supplied mixed-product density.
Your inputs
Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.
A clear estimate starts here.
Enter your dimensions and product details to see the quantity and purchase breakdown.
Formula and assumptions
How this calculation works.
The grid-cell method estimates an extensive rectangular tile field. It counts the joint network once. Density and equivalent pack yield must refer to the same prepared grout basis.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Tiled area
- 10 m²
- Tile length
- 100 mm
- Tile width
- 100 mm
- Specified joint width
- 10 mm
- Specified filled joint depth
- 10 mm
- Mixed grout density
- 1,000 kg/m³
- Equivalent supplied grout mass per pack
- 5 kg
- Waste allowance
- 0 %
Grout packs to purchase: 4 packs
Boundary joints, unusual tile shapes and product shrinkage are not modelled. Confirm the result against your manufacturer’s coverage data.
Before you purchase
Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.