Hull fouling fuel cost calculator
Estimate the added power, fuel cost and CO2 from hull fouling by vessel class and hull regime. See the model’s assumptions alongside the results.
What does a dirty hull actually cost you?
Dial in the fouling rating, vessel class and hull regime. Outputs are first-order estimates from an admiralty-style resistance model and typical SFOC figures - directionally honest, not a class deliverable.
MM · CALC 01 / PERFORMANCE PENALTY
REC
Fouling Rating (ISO 19030-ish)
FR 3 / 5 - MEDIUM
CLEANSLIMELIGHTMEDIUMHEAVYSEVERE
Vessel Class
9,500 kW @ 14 kn
Hull Regime
Baseline
Added Power
2,470kW
Total: 11,970 kW
Excess Fuel
10.37t/day
Baseline: 39.9 t/day
Cost Penalty
$6,430/day
@ $620/t VLSFO
CO₂ Penalty
32.29t/day
Impacts CII rating