CO2 Calculator
The Jet A CO2 emissions coefficient (3.16 Kg CO2 per 1.0 Kg of Jet A) is documented in ICAO Annex 16 — Environmental Protection, Volume IV — Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). This became applicable on 1 January 2019. The US EPA aligned its CO2 emission standard with the ICAO standard early 2021.
The 100LL/AvGas CO2 emissions factor (3.05 Kg CO2 per 1 Kg of AvGas) is documented in the US Energy Information Administration table entitled “CO2 Emissions Coefficients” dated Sept 16, 2021. In turn this was based on the U.S. EPA study entitled “Inventory of U.S. Greenhouse Gas Emissions and Sinks” dated June 16, 2021.