In international maritime shipping, the chargeable weight of cargo plays a pivotal role in determining transportation costs, serving as a critical factor for both shippers and logistics providers.
For containerized shipments, transportation fees are typically calculated based on container specifications. Standard 20-foot containers generally have a maximum allowable weight of 21 metric tons, while 40-foot containers permit up to 26 metric tons. These standardized measurements ensure consistent pricing across global shipping routes.
Less-than-container-load (LCL) shipments employ a distinct calculation method that differentiates between heavy cargo and volumetric cargo (commonly called "measurement cargo" or "light cargo"). The maritime industry universally adopts the "Revenue Ton" (R/T) as the standard billing unit, where 1 R/T equals either 1 cubic meter or 1 metric ton, whichever yields the greater value.
The final freight charge is determined by comparing the physical weight against the volumetric weight, with the higher value becoming the chargeable weight. This dual-measurement system guarantees equitable pricing for all parties involved while maintaining transparency in shipping costs. By clearly establishing these standardized metrics, the industry provides customers with predictable and fair pricing structures for global trade operations.
