What is Chargeable Weight?

Chargeable Weight is an alternate metric which accounts not only for the weight of an object, but also the space the object occupies. It is a function of the Gross Weight and Volumetric Weight of a shipment.

What is Chargeable Weight and why is it used?

Simply put, Chargeable Weight is the greater of the Gross Weight and Volumetric Weight of an item. It's used as an alternative metric to capture both the weight and volume of a shipment being processed.

Typically, small, heavy items take up less space on a vehicle than a large item with a light overall weight.  This drives couriers to use Chargeable Weight instead of focusing on one metric.

Example: A kilogram of pillows and a kilogram of rocks have the same actual gross weight, but the rocks may have lower Chargeable Weight due to its lower Volumetric Weight.

The pillows' lower density will cause it to take up substantially more space in the shipping vehicle and Chargeable Weight allows couriers to compensate for this added volume. 

How to calculate Chargeable Weight?

  1. Calculate gross weight in kilograms. This can be calculated using a scale and should include all packaging, pallets, etc. 
  2. Calculate volumetric weight equivalent. To do this i) measure the dimensions of your package, ii) calculate your volume (HxLxW), and iii) multiply the volume by the applicable conversion ratio
  3. Select the greater of the two above metrics

The applicable conversion ratio varies by carrier, vehicle type, and other factors. Reach out to one of Mercury's expert representatives to help you determine your rate.

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