Marlo’s CII Calculator allows users to assess the environmental performance of their vessels based on IMO’s Carbon Intensity Indicator standards. It helps evaluate voyage emissions and understand how a vessel’s carbon efficiency rating might change under different operating conditions—supporting better decision-making in voyage planning, chartering, and compliance tracking.
Concepts in the Module
Rating Scale: Graded A to E (A = best, E = worst)
Impact Inputs: Bunker type, port time, average speed, distance, cargo quantity
IMO Guidelines: Marlo uses IMO DCS (Data Collection System) methodology for CII compliance
Benchmarking: Compare your vessel’s CII score against similar class vessels
Workflows in the Module
Estimate View Integration
As users build an estimate, CII rating auto-calculates based on voyage details
Voyage Monitoring
Track actual CO₂ emitted during ongoing voyages
Retrospective Analysis
Analyze past voyages to understand CII trends per vessel
Scenario Modelling
Adjust itinerary, speed, or bunker type to simulate impact on CII score
Downloadable Report
Export CII calculation reports for compliance or internal review
Related Key Topics
EU ETS Module
Bunker Planning
Voyage Estimation
Vessel Specs
Emissions Monitoring
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