DIM weight, or dimensional weight, is a pricing method used by shipping carriers to calculate the cost of shipping based on the package’s volume rather than its actual weight. Dimensional weight is automatically calculated by our system and is determined by measuring the package’s length, width, and height, multiplying them together, and dividing by a DIM divisor set by the carrier.
Carriers use DIM weight to account for bulky, lightweight packages that take up space in trucks, planes, or containers.
Dimensions are in inches (U.S.) or centimeters (international).
The DIM Divisor varies by carrier (common examples: 139, 166).
A box measuring 20” x 12” x 10” is 18 lbs, even if the scale weight is only 5 lbs.