CBM stands for Cubic Meter, which is a unit of measurement for volume. This means that one cubic meter is equivalent to one meter wide, one meter long, and one meter high.

To calculate the CBM, you simply multiply the length, width, and height of the packages, represented as L x W x H (if in meters). For example, if the length of the packages is 0.8, the width is 0.6, and the height is 0.4, the CBM would be 0.8 x 0.6 x 0.4 = 0.192 CBM.