Understanding the difference between these two before the shipping facility is important to calculate the shipping cost rightly.
Actual weight is the actual weight of the shipment while volumetric weight is the dimensional aspect of the shipment. For instance, if you’re shipping a vase, its actual weight would be measured in kg and the detail of Length x Width x Height divided by 5000 is the volumetric weight.
Aramex calculates both these weight types for each shipment and moves forward with the larger value. All the other package delivery services like DHL and GLS adopt the same procedures.