Air Shipping Agent Air freight shipping prices and costs When it comes to air freight shipping, weight and volume are key factors. Air carriers will charge by either volumetric weight (also known as dimensional weight) or actual weight, depending on which is more expensive. To calculate volumetric weight for air shipping, multiply the item鈥檚 volume in cubic meters by 167. So, let鈥檚 say you have a package with the following measurements: W: 40cm, H: 40cm L:40. This means that the volume is .064 (the product of all sides divided by one million). Multiply this by 167 and you get a volumetric weight of 10.67 kg.Air Shipping Agent website:http://www.hkelogistics-transportation.com/air-freight/air-shipping-agent/