CII Calculator

Calculate your ship's annual Carbon Intensity Indicator rating. Enter the ship details, distance and fuel to see the rating, band limits and what it takes to move up or down a band.

1Ship details

Ship name (optional)Calculation yearReduction factor Z = 9%Ship typeDeadweight – DWT

Stated on the IEE certificate

2Total distance and fuel for the year

Enter all distance sailed and all fuel consumed during the year, including any war-zone portion; that part is deducted in the next section.

Total distance sailed

Total HFO (Heavy Fuel Oil)

Total LFO (Light Fuel Oil)

Total MGO / Diesel

Total LPG – Propane

Total LPG – Butane

Total LNG

Total Methanol

Total Ethanol

3War / security zone (if any)

Fuel and distance during time spent waiting in a war or high-risk area are excluded from the CII calculation (security exemption under MARPOL Annex VI, reg. 3.1). Leave blank if not applicable.

Time spent in the zone

days

Distance sailed in the zone

HFO (Heavy Fuel Oil) burned in the zone

LFO (Light Fuel Oil) burned in the zone

MGO / Diesel burned in the zone

LPG – Propane burned in the zone

LPG – Butane burned in the zone

LNG burned in the zone

Methanol burned in the zone

Ethanol burned in the zone

Result: CII rating

(unnamed ship) — Bulk Carrier

Enter ship details, distance and fuel consumption to see the rating.

For guidance and planning purposes. Final regulatory calculations should be verified against the applicable regulation, verified emissions data and official reporting requirements.