How to calculate volumetric weight

Volumetric weight converts the space occupied by a shipment into a calculated weight that can be compared with its actual gross weight.

Definition

In air freight, package volume is converted into kilograms using a tariff-specific factor. A common example for centimetre measurements is length × width × height divided by 6,000. The factor stated in the specific quotation or carrier tariff remains decisive.

Why does it matter?

Incorrect dimensions change the chargeable weight and therefore the price. Space requirements are especially relevant for cartons, insulated packaging and non-stackable pallets.

Key points

Example: 120 × 80 × 100 cm ÷ 6,000 = 160 kg.
For multiple packages, the individual volumetric weights are added together.
Non-stackable cargo may create additional capacity charges.

Practical example

A pallet measures 120 × 80 × 100 cm and weighs 110 kg. At a factor of 6,000, its volumetric weight is 160 kg and therefore exceeds its gross weight.

Common mistakes

Using internal rather than external dimensions
Applying an average measurement to different packages
Treating an example conversion factor as universally binding

General professional information, not legal or customs advice. Requirements may vary by goods, route and current regulations.