volumetric meter

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Why are some goods charged by volume while others are charged by weight for air freight? The core basis for billing goods by volume or weight in air freight is the "billing weight" rule, which compares the actual gross weight and volumetric weight of the goods and takes the larger value as the billing standard. The specific reasons and rules are as follows:

1. Definition and comparison rules of actual weight and volumetric weight. Actual Weight: The weight of goods obtained by weighing (weighing), usually referring to the actual gross weight (Gross Weight). For example, if a shipment weighs 95 kilograms, its actual gross weight is 95 kilograms. Volumetric Weight: The equivalent weight calculated based on the volume of the goods and conversion factors. The commonly used conversion factor in air transportation is 1:167 (i.e. 1 cubic meter ≈ 167 kilograms), and the calculation formula is: volumetric weight (kg)=length (cm) × width (cm) × height (cm) ÷ 6000. For example, if the volume of goods is 1.2 cubic meters, the volumetric weight is 1.2 × 167=200.4 kilograms. Billing rule: Compare the actual gross weight with the volumetric weight, and take the larger value as the billing weight. If the volume and weight are larger, the goods are called "Light Weight Cargo"; If the actual gross weight is larger, it is referred to as Dead Weight Cargo . Secondly, the fundamental reason for billing based on volume or weight is to balance transportation costs. Air transportation costs are jointly determined by space occupation and load limitations. Bubble cargo: Large in volume but light in weight (such as cotton, plastic products), if only charged based on actual weight, airlines will incur losses due to the excessive occupatio

n of cabin space. Heavy cargo: Large in weight but small in volume (such as metal, mechanical equipment), if charged only by volume, airlines may lose revenue due to underutilization of load capacity. By comparing the actual weight with the volumetric weight, ensure that the transportation cost matches the revenue. Optimizing the utilization rate of cabin space and cargo capacity is limited, and it is necessary to reasonably match heavy cargo and foam cargo. If there is too much heavy cargo, the maximum load capacity will be reached before the cabin is filled, which wastes space. Excessive cargo accumulation: Filling the cargo space before reaching the maximum load capacity wastes the carrying capacity. Charging based on higher values can force shippers to optimize packaging, while also encouraging airlines to scientifically load and improve transportation efficiency. 3. Specific billing scenario example: Bubble cargo billing (volume weight>actual weight) The actual gross weight of the goods is 95 kilograms, the volume is 1.2 cubic meters, and the volume weight is 200.4 kilograms. Charged weight=200.4 kilograms (charged by volumetric weight). Heavy cargo billing (actual weight>volumetric weight) The actual gross weight of the goods is 560 kilograms, with a volume of 1.5 cubic meters and a volumetric weight of 250.5 kilograms. Charged weight=560 kilograms (charged based on actual weight). 4. Diversity of Conversion Factors for Special Situations and Precautions The internationally recognized conversion factor is 1:167 (i.e. 1 cubic meter ≈ 167 kilograms), but some courier companies may use 1:5000 (i.e. 1 cubic meter ≈ 200 kilograms), which needs to be confirmed according to the specific carrier. Some routes or cargo types

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