Bostik Grout Calculator tool Online

The Bostik Grout Calculator is a handy online tool designed to help people estimate the amount of grout needed for their tiling projects. Grout is the material used to fill the gaps between tiles, ensuring they stay in place and look neat.

How to Use the Bostik Grout Calculator


Input the Tile Dimensions: Enter the width, height, and thickness of the tiles in centimeters. These measurements are crucial for calculating the number of tiles needed and the volume of grout.

Enter the Grout Joint Width: Provide the width of the grout joints in centimeters. This value determines the space between each tile that needs to be filled with grout.

Provide the Total Area: Input the total area to be tiled in square meters. This helps in calculating the total number of tiles required for the project.

Calculate: Click on the “Calculate Grout” button. The tool will compute the required volume of grout based on the provided inputs and display the result in liters.

Explanation of the Calculation


The calculation involves several steps:

Tile Area: Convert the tile dimensions from centimeters to meters and calculate the area of a single tile.
Number of Tiles: Divide the total area by the area of a single tile to find out how many tiles are needed.
Grout Volume per Tile: Calculate the volume of grout needed for each tile, considering the thickness of the tile and the width of the grout joint.
Total Grout Volume: Multiply the grout volume per tile by the total number of tiles to get the total volume of grout required in cubic meters. Convert this volume to liters (1 cubic meter = 1000 liters).


This tool is designed to estimate the quantity of grout needed for tiling project. With its simple form and clear results, you can ensure you have enough materials before starting your work.