Volumetric weight, also known as dimensional weight, is a pricing technique used by courier and logistics companies to calculate shipping charges based on the space a package occupies instead of its actual weight.

It is typically calculated using the formula: (Length × Width × Height) ÷ Divisor, where the divisor varies by courier (commonly 5000 for domestic and 4000–6000 for international shipments).

This method ensures that lightweight but bulky packages are charged fairly, as they take up more space during transportation. Courier companies compare volumetric weight with actual weight and charge based on whichever is higher.

Understanding volumetric weight is essential for eCommerce sellers, as it directly impacts shipping costs and packaging decisions. Optimizing package size can help reduce unnecessary logistics expenses and improve profit margins.

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