Calculatium

Tile Grout Calculator

Estimate tile grout volume and weight from tiled area, tile dimensions, joint width, depth, product density and an additional allowance.

Enter your values

The starting values are editable examples. Results update when you change your inputs.

Example: 10
Example: 200
Example: 200
Example: 3
Example: 5
Example: 1.6
Allowed range: 0 – 100

Your result

Updates as you change your values.

Enter values to calculate.

How it is calculated

Approximate litres = area × (tile length + width) / (length × width) × joint width × depth, using tile and joint dimensions in mm. Weight = litres × density × allowance factor.

Worked example

For 10 m² of 200 × 200 mm tiles with 3 mm joints and 5 mm joint depth, geometric volume is about 1.5 L. At 1.6 kg/L, this is 2.4 kg before allowance.

Before you calculate

Use the actual effective joint depth and width, not automatically the full tile thickness. Obtain the relevant mixed-product density from the manufacturer. Enter a waste allowance separately and keep its purpose clear.

Interpreting the result

The expression approximates a regular joint network and can differ from product consumption tables. Tile profile, packing and application losses matter. Compare the result with the chosen grout's guidance and batch requirements before buying.

Use the units shown beside each field. Monetary fields labelled EUR stay in euros; changing language does not exchange currencies. Results are estimates under the stated assumptions.