HomeShip ScienceEngine performance & thermodynamicsCalculatorsCO₂ from Fuel (Cf method)CO₂ from Fuel (Cf method)Compute CO₂ emissions from fuel mass using the IMO MEPC.364(79) conversion factors. The foundation of every IMO and EU CO₂ calculation.PollutantsMEPC.364(79)FuelHeavy Fuel Oil (HFO / RME..RMK)Very Low Sulfur Fuel Oil (VLSFO, ≤0.50% S)Ultra Low Sulfur Fuel Oil (ULSFO, ≤0.10% S)Light Fuel Oil (LFO / RMA..RMD)Marine Gas Oil (MGO / DMA, DMZ)Marine Diesel Oil (MDO / DMB)LNG - Otto cycle, medium-speed (4-stroke dual-fuel)LNG - Otto cycle, slow-speed (2-stroke low-pressure)LNG - Diesel cycle, slow-speed (2-stroke high-pressure)LNG - lean-burn spark-ignited (LBSI)LPG - PropaneLPG - ButaneMethanol - grey (natural-gas feedstock)Bio-methanole-Methanol (RFNBO from renewable H2 + captured CO2)Ammonia - grey (steam-methane reforming)Ammonia - blue (SMR + CCS)Ammonia - green (electrolytic, renewable)Hydrogen - grey (SMR)Hydrogen - green (renewable electrolysis)Bio-LNG - Otto cycle, medium-speedBio-LNG - Otto cycle, slow-speedBio-LNG - Diesel cycle, slow-speedBio-LNG - lean-burn spark-ignitedFAME biodiesel (B100, waste feedstock)HVO / Renewable Diesel (waste feedstock)Fuel masstCf (t CO₂ / t fuel)3.114MEPC.364(79)CO₂ emitted311.40tChanging the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.Formula, assumptions, and limitsmCO2=mfuel⋅Cfm_{\text{CO}_2} = m_\text{fuel} \cdot C_fmCO2=mfuel⋅CfSymbolMeaningUnitmCO2m_{\text{CO}_2}mCO2CO₂ emittedtmfuelm_\text{fuel}mfuelFuel burnedtCfC_fCfCO₂ conversion factort CO₂ / t fuelSource: IMO MEPC.364(79) - 2022 Cf tableIn shortCompute CO₂ emissions from fuel mass using IMO MEPC.364(79) conversion factors. Foundation of EEDI, CII, EU ETS, and FuelEU calculations.Learn the theory Engine Performance Monitoring: PMI Systems →