计算货运包裹的体积重量。FedEx、UPS、DHL等承运商使用此重量来计算轻而大的包裹（俗称“泡货”）的运输成本。
Formula Used:
The standard divisor for international air freight (IATA) is **5000** for metric calculations (cm³/kg) and **139** for imperial calculations (in³/lb). Please note that specific carriers like FedEx or UPS may use different divisors for their ground services. Always confirm with your carrier for a precise shipping cost.