Volumetric weight is calculated by multiplying the length, width and height of a package in centimeters and dividing the result by a volumetric factor, which varies depending on the courier company. The formula is often expressed as (L x W x H) / Volumetric Factor.
Volumetric weight is a theoretical weight of a package based on its size and it is used by courier companies to determine shipping costs.
Actual weight is the physical weight of the package measured on a scale. The courier charges are based on either the volumetric or actual weight and the higher of the two is used for pricing.
Actual weight is calculated by measuring the physical weight of a package using a scale. Simply place the package.