Marine Emissions Calculator

Marine Emissions Calculator

Translate fuel consumption into CO₂ emissions and real-world equivalents

Understanding Your Impact

This calculator helps you understand greenhouse gas emissions from marine fuel consumption. It converts raw data into CO₂-equivalent emissions using standardized emission factors and provides real-world comparisons to help visualize your environmental impact.


For accurate results, please fill in all fields with your actual operational data.

Please select a fuel type.
Please enter a valid fuel consumption amount.
Default Emission Factors

The calculator uses these default CO₂ emission factors (kg CO₂ per kg fuel):

  • Marine Gas Oil (MGO) 3.206
  • Marine Diesel Oil (MDO) 3.206
  • Intermediate Fuel Oil (IFO) 3.114
  • LNG 2.750
  • LPG 3.000

Source: IMO GHG Study 2020

About This Calculator

Understanding Marine Emissions

This calculator helps marine operators understand and quantify their greenhouse gas emissions. It uses standardized emission factors from the IMO GHG Study 2020 to convert fuel consumption data into CO₂-equivalent emissions.

Why Calculate Your Emissions?
  • Regulatory Compliance: Prepare for current and upcoming IMO regulations like CII and EEXI
  • Performance Benchmarking: Compare your emissions against industry averages
  • Operational Efficiency: Identify opportunities to reduce fuel consumption and costs
  • Sustainability Reporting: Support your ESG reporting requirements
Calculation Methodology

The calculator uses the following formula:

Total CO₂e = Fuel Consumption × (CO₂ Factor + CH₄ Factor + N₂O Factor)

Where CO₂e represents carbon dioxide equivalent, accounting for the global warming potential of all greenhouse gases emitted.