Volumetric weight is the calculated weight based on the length, width and height of a parcel converted to volumetric kilograms. The formula used to calculate the volumetric weight varies by courier and the service used. For example, some couriers apply a different volumetric formula for their express and economy service.
The bigger an item is, the more room it takes up on a vehicle or aircraft, and therefore the more it costs to send. If an item is large but light, the price will be based on the size rather than the weight.
Different courier companies use different metrics, but the most common method is to multiply the 3 parcel dimensions in centimetres and divide by 5,000.
Don’t worry, the handy tool above calculates this for you, but if you want to work it out for yourself, here’s how it’s done:
Multiply the length x height x width of your parcel in cm. For example, 20 x 20 x 30
You've now calculated the volumetric weight in kg. *To calculate volumetric weight using inches, simply divide by 305
If the number is greater than the physical weight, then your shipment will be billed based on the volumetric weight.
(Can be cleared only on Approvals from Ministry)
For example if you ship an iPhone in a larger box than necessary the charges will be based on volumetric weight not “actual box weight”
The reason for this is the parcel will take up more room during transit on the chosen couriers van so they lose out on revenue from other clients packages.
To avoid paying more than required it is very important that you select parcel size that is suitable for your item.
To calculate the girth of a package, follow these guidelines: