A free program for Android, by SD.

Calculator Bulk Materials is a handy utility that will help you calculate the approximate mass of a given volume of bulk materials. It is an indispensable tool when it comes to the preparation of concrete or other similar mixtures. This can be very useful in the construction industry, where the estimation of the mass of the mixture is a vital part of the process of building a house or other structures.

The main advantage of this app is that it allows you to specify the volume of the material in a very accurate way. It is very easy to use and does not require any additional information to be used.