Question 1

Does the calculator include the impact of contrails and other non-CO₂ effects?

Accepted Answer

Yes. The calculation applies a radiative forcing multiplier (typically 1.9) to account for the additional warming effects of emissions at altitude, including contrails and nitrogen oxides. This is standard practice in aviation carbon accounting.

Question 2

Why does business class show higher emissions than economy?

Accepted Answer

Business and first class seats occupy more cabin space per passenger. The total emissions of the flight are divided among passengers based on the floor area they occupy, so premium cabins receive a proportionally higher allocation.

Question 3

Is this calculation accurate enough for carbon offsetting?

Accepted Answer

The estimate is suitable for general offsetting purposes. Most carbon offset programs accept calculator-based estimates. For formal reporting or regulatory compliance, consult the specific methodology required by your reporting framework.

Question 4

Does the calculator account for connecting flights?

Accepted Answer

No. Each calculation covers a single flight segment. For multi-leg journeys, calculate each segment separately and sum the results.

Flight Carbon Footprint Calculator