Volumetric weight, sometimes called "dim" or dimensional weight, is used when the space a package takes on an aircraft may cost more than the package's actual weight.
You should calculate dimensional weight on every shipment, and compare that to its actual weight, and use the greater of the two to determine your shipping cost.

Use these forms if you need to convert lbs to kg or feet and inches to cms.

  Convert to kg Convert to cms  
lbs kg   ft in Centiliter
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For lightweight shipments the volumetric weight will be charged if this exceeds the actual weight (in kilograms).

To calculate the volumetric weight, enter the width, height and depth of your package (in centimetres) in the fields below and press the Calculate button.

  Covert volumetric weight  
Width (cms) Height (cms) Depth (cms) Volume Volumetric Weight
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CALCULATION OF VOLUME WEIGHT ON AIR FREIGHT
Example: 40x48x60 cms, gross weight = 5 kgs
volume weight is:
40x48x60 = 115,200 Volume (cm³)
115,200 / 6,000 = 19.2 volume kgs

Your volume weight is higher than the actual weight (19.2 kgs vs 5 kgs), therefore, your chargeable weight will be 19.2 kgs. The airlines charge based on both the actual weight and dimensional weight, where 6 cubic meters = 1000 dimensional kgs