ShipCalculators.com

Bulk Carrier CII

CII for bulk carriers - Handysize, Handymax, Supramax, Ultramax, Panamax, Kamsarmax, Post-Panamax, Capesize. MEPC.337 reference line (a=4745, c=0.622). DWT-based across all sizes.

Ship typeBulker
Loading calculator…

Formula, assumptions, and limits

CIIrequired=4745DWT0.622(1Z)\text{CII}_\text{required} = 4745 \cdot \text{DWT}^{-0.622} \cdot (1 - Z)
SymbolMeaningUnit
DWTDWTDeadweightt
ZZAnnual reductionfraction

Source: IMO MEPC.337/338/339(76); BIMCO bulker CII operational guidance

In short

CII rating for bulk carriers using the MEPC.337 reference line (a=4745, c=0.622) and MEPC.339 bulk-carrier d-boundaries.

Learn the theory Bulk Carrier Size Classes Explained