When I was writing my article I have read couple of websites, who mentioned that chargeable weight and volumetric weight as if they are the same concepts.

Unfortunately it is not true. Chargeable weight and volumetric weight (also known as dimensional weight) are not the same concepts.

Do you want to learn why? Please keep reading...

Unfortunately it is not true. Chargeable weight and volumetric weight (also known as dimensional weight) are not the same concepts.

Do you want to learn why? Please keep reading...

**What is a volumetric weight?**

Volumetric weight is an hypothetical weight calculated by multiplying the gross volume of the cargo by the volumetric weight constant of the selected mode of transport.

On below table you can find volumetric weight constants for air, sea and road transportation.

Volumetric weight constants for air, sea and road shipments:Air shipment volumetric weight constant= 167 kgs / cbmSea shipment volumetric weight constant= 1000 kgs / cbmRoad shipment volumetric weight constant= 333 kgs / cbm

**How to calculate volumetric weight?**

In order to calculate the volumetric weight, you have to identify the gross volume of the cargo in cubic meters (cbm). After you figured out the gross volume of the cargo, you can reach volumetric weight simply multiplying it with the appropriate volumetric weight constant.

**Volumetric weight calculation example:**

Let us assume that we want to ship a cargo, which consists of 50 packages with the following dimensions. This shipment presumed to be arranged via air shipment.

- Dimensions of each package: 100cmx60cmx50cm
- Weight of each package: 40kgs/gross weight

**Step 1 : Calculating the gross volume of the cargo:**In order to reach the volumetric weight, you should calculate the volume of the cargo in cubic meters.

- Dimensions of one package in centimetre => 100cm x 60cm x 50 cm
- Dimensions of one package in metre => 1m x 0,6m x 0,5m
- Volume of one package = 1m x 0,6m x 0,5m = 0,3 cbm (cubic metre)
- Total volume of the cargo = 50 x 0,3 cbm = 15 cbm

**Step 2 : Calculating the volumetric weight of the cargo:**You should multiply the volume of the cargo with air shipment volumetric weight constant, in order to reach the volumetric weight.

Air shipment volumetric weight constant = 167 kgs / cbm

Volumetric Weight= Total volume of the cargo x air shipment volumetric weight constant

Volumetric Weight= 15 cbm x 167 kgs/ cbm = 2505 kgs

You have to compare the actual gross weight with the calculated volumetric weight, in order to determine the chargeable weight of the shipments.

**How to determine chargeable weight of the cargo?**You have to compare the actual gross weight with the calculated volumetric weight, in order to determine the chargeable weight of the shipments.

- If actual gross weight is bigger than volumetric weight, then the chargeable weight is the actual gross weight.
- If volumetric weight is bigger than actual gross weight, then the chargeable weight is the volumetric weight.

As you can see volumetric weight is bigger than the actual gross weight, which means that I have to use volumetric weight as chargeable weight under these conditions.

But if the gross weight were bigger than the volumetric weight, then I had to use actual gross weight as chargeable weight.

Volumetric weight and chargeable weight are not the same concepts. They may or may not be showing the same number, depending on the comparison between the actual gross weight and the volumetric weight of the cargo.

But if the gross weight were bigger than the volumetric weight, then I had to use actual gross weight as chargeable weight.

**Conclusion:**