How do you calculate CBM into dwt of oil vessels?

To convert cubic meters (CBM) into deadweight tonnage (DWT) for oil vessels, you need to know the specific weight of the oil being transported, typically measured in metric tons per cubic meter. The formula is: DWT = CBM × specific weight of the oil. For example, if the oil has a density of 0.85 metric tons/m³, then 1,000 CBM would equal 850 DWT. Adjust the specific weight based on the type of oil for accurate conversions.