Shippers should be aware of CHARGEABLE WEIGHT AND CHARGEABLE VOLUME (WM) definitions used in different modes of cargo transportation. In respect of Ocean and Inland modes the meanings of WM are:
OCEAN MODE OF TRANSPORTATION: Since vessel capacity is not really limited by weight of cargo but by the hold of the ship, then charges for regular ocean shipments are based on the total cargo volume. In general for sea shipments, the weight of the cargo is not a pricing factor.
However there is a cargo density limit if WM ocean freight rates are present. It varies depending on the carrier, origin and destination, etc. Regular shipments most likely will not exceed the limit. In general exporters have to be aware of the “U.S. 45 lbs rule”, 45 lbs = 1 cubic foot. This means that if the density of the cargo exceeds 45 lbs per one cubic foot, then chargeable volume will be calculated using this formula: Total Weight of the cargo (in pounds) divided by 45 lbs = Chargeable Volume in cubic feet. The limit of 1 cubic meter = 750 kilos can be used as well. However depending on carrier, origin and destination etc, it may vary: 1 cbm = 500 kilos; 1 cbm = 1000 kilos etc. The exporter should be advised about WM by the carrier when making the booking.
INLAND MODE OF TRANSPORTATION (Pickup or Line-haul charges): WM for Inland Trucking is more heavily restricted then in the Ocean mode and subject to actual or dimensional weight verification. Chargeable weight for Inland Trucking will be calculated using this formula: Chargeable Weight in Pounds = Actual Weight of the Cargo OR (Length x Width x Height in inches) divided by 250, whichever is greater.
Notice: Our online quick quote and booking Weight & Volume calculators DO NOT reflect WM. They reflect straight weight charges. This is purposely done to avoid misunderstandings for first-time visitors. If WM rules apply then it will be indicated in our documents for each shipment.
For your convenience you can define inland trucking chargeable weight (services that include pickup or line-haul charges) using the calculator above in this web-page.