The LATICRETE Grout Calculator is supplied as an Excel spreadsheet. There is a page in the spreadsheet for each type of product and the instructions for how to use the spreadshet are written on the pages. The file can be downloaded via the link below.
LATICRETE Grout Coverage Calculator Version 1.4
As an alternative, the LATICRETE App has a coverage calculator plus many more useful features. For more information and to download the App, please visit the App Store and download the LATICRETE Mobile App.