The calculator lets you estimate consumption based on project data.  For sealing grouting between tiles, it is therefore necessary to know the size of the tile, the width of the grout and the total surface to be grouted.   The calculator also lets you ascertain  the results in a quantity that is actually to be purchased based on the different available packages. 

The calculation is based on the actual volume to be filled and product density.

The data provided should only be interpreted as a guideline and for the sole purpose of estimation since there are many other factors that could affect the actual consumption (including yet not restricted to tile roughness, excess residual product, lack of flatness of surfaces, etc.).