CO₂ Emission Calculator

Calculate CO₂ emissions from a quantity of fuel burned.

Calculate

Enter your values below.

≈2.31 for petrol, ≈2.68 for diesel

Result

CO₂ emitted
0

Formula used

CO₂ emitted = Fuel used × Emission factor

Example: 50 liters of petrol at 2.31 kg CO₂/liter → 115.5 kg CO₂.

How to use this calculator

  1. Enter Fuel used (liters), Emission factor (kg CO₂ per liter).
  2. Press Calculate to see your result instantly.

Frequently asked questions

What emission factor should I use for petrol?

Approximately 2.31 kg CO₂ per liter is a commonly cited figure for gasoline/petrol.

What about diesel?

Approximately 2.68 kg CO₂ per liter is commonly cited for diesel, since it's slightly denser and more carbon-intensive than petrol.

Does this include upstream emissions from fuel production?

No, this reflects tailpipe combustion emissions only, not the full lifecycle 'well-to-wheel' footprint.

How is this different from the Car Carbon Calculator?

This works from actual fuel used; Car Carbon Calculator works from distance driven and a per-km emission factor.