What is 2.31 kg CO2 per liter?
That is the average CO2 emitted per liter of gasoline burned. Diesel is about 2.68 kg/L.
Travel
Carbon Footprint Calculator
Enter the distance and your fuel consumption to see an estimate of the carbon dioxide produced by the trip.
Live calculator output
Enter distance and fuel consumption to see your CO2 estimate.
How it works
The calculator first determines how much fuel is used: Fuel Used = (Distance ÷ 100) × Consumption Rate. Then it multiplies by the emission factor: CO₂ = Fuel Used × Emission Factor.
The default emission factor of 2.31 kg/L is the standard for gasoline. Diesel produces about 2.68 kg/L. Electric vehicles produce zero tailpipe emissions, though electricity generation has its own carbon footprint.
Practical example
A 500 km road trip in a car that uses 8 L/100 km: Fuel used = (500 ÷ 100) × 8 = 40 liters. CO₂ = 40 × 2.31 = 92.4 kg of CO₂.
For comparison, a round-trip flight of the same distance would produce about 100–120 kg of CO₂ per passenger — slightly more than the road trip for a single occupant.
Frequently asked questions
Does this include manufacturing emissions?
No. This only covers tailpipe emissions from fuel combustion.
How can I reduce my footprint?
Drive less, carpool, use public transit, or switch to an electric or hybrid vehicle.
What is the average annual driving carbon footprint?
The average car produces about 4.6 metric tons of CO2 per year (about 12,000 miles at average efficiency). Carpooling or driving a fuel-efficient car can cut this significantly.
Are electric vehicles truly zero-emission?
At the tailpipe, yes. But electricity generation may involve fossil fuels. Overall, EVs produce 50-70% less CO2 over their lifetime compared to gasoline cars in most regions.
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