Question: how to calculate carbon emissions of vehicles?
Answer: Fuel combustion emissions can be calculated using the emissions factor of 2.33 kg CO2e/litre. If your car average 8 L/100 km then you multiply this by 2.33 and divide by 100 to give 186 g CO2e/km for combustion emissions. Fuel production emissions can be calculated using an emissions factor of 0.43 kg CO2e/litre.