Free tool — no sign-up
CII calculator and EU ETS cost estimator.
Enter a vessel's annual fuel consumption, distance sailed and deadweight to get its attained CII, the required CII for the year, the resulting A–E rating and an estimate of the EU ETS allowances the same voyages would cost.
Vessel & voyage data
Annual fuel consumed (tonnes)
EU ETS exposure
100% of intra-EEA voyages and port calls, 50% of voyages into or out of the EEA.
Result
Band A for 2026
70% of the required CII
- Attained CII
- 3.205 g CO₂ / t·nm
- Required CII
- 4.600 g CO₂ / t·nm
- Total CO₂ emitted
- 11,526 t
- CO₂ to reach band C
- Already within band C
- CO₂ in EU ETS scope
- 4,034 t (100% phase-in)
Estimated EU ETS allowance cost
€282,385
Per year, at €70/tCO₂. Allowance prices move daily.
Estimate only. Uses published IMO reference lines, reduction factors and rating boundaries without ship-specific corrections, voyage adjustments or exclusions. Verified DCS and MRV data will differ — use your verifier for statutory figures.
Track this across your fleetCII and EU ETS questions.
Rate the whole fleet, not one vessel at a time.
Full Ahead keeps continuous CII and EU ETS accrual against every vessel alongside planned maintenance and statutory compliance. Thirty days free, no card.