Carton calculator (com.ajuradoperez.calcularcajas) on Google Play
This simple application calculates the number of cartons needed for a specific production volume. It is designed for productions where there is much variability in the type of packaging and products. Although the application has been developed especially in the production of books and magazines, but I have raised for use on almost any product.You only need the 3 internal dimensions of the carton (width x length x height), the same about the object or item that you want to keep inside and, of course, the theoretical amount. The app does all the math for you and gives you the total of cartons needed.It requires no special permission.