Container Ship CII

CII for container ships - feeder, Panamax, Neo-Panamax, Post-Panamax, ULCV. MEPC.337 container reference (a=1984, c=0.489). Lower c than bulker/tanker - required CII drops more slowly with capacity, so larger ships don't get a disproportionate advantage.

Ship typeContainer

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{CII}_\text{required} = 1984 \cdot \text{DWT}^{-0.489} \cdot (1 - Z)

Symbol	Meaning	Unit
$DWT$	Deadweight	t
$Z$	Annual reduction	fraction

Source: IMO MEPC.337/338/339(76); World Shipping Council - container ship emissions factsheet

In short

CII rating for container ships - feeder, Panamax, Post-Panamax, ULCV - using the MEPC.337 container reference.

Learn the theory Container Ship Size Classes: Feeder to ULCV