Package details
Couriers charge whichever is greater: actual weight or DIM weight.
Result
Enter the package details and press Calculate.
Calculate dimensional (DIM) weight for shipping, free. Enter package dimensions and actual weight to find the billable weight couriers charge you.
Enter the package details and press Calculate.
Enter the package length, width and height plus your unit system. The tool divides the volume by the carrier's DIM divisor (5000 for international air in cm, 139 or 166 for US domestic in inches) to get the dimensional weight, then compares it with the actual weight if you provide one. The billable weight is whichever is greater: that is what the courier charges.
Couriers charge for the space a package takes up, not just how heavy it is. A big box of pillows costs more to fly than a small box of books at the same weight. Knowing the DIM weight before you ship helps you pick the right box size and avoid surprise surcharges.