Skip to content
Free Tool Arena

Home & Life · Free tool

Flight Carbon Footprint Calculator

Kg CO2 per passenger by flight distance and cabin class. Shows real-world equivalents and trees-to-offset.

Updated April 2026
CO2 per passenger (Long-haul (>3700km))
825 kg
0.150 kg/km base × cabin factor 1
Gasoline equivalent
92.8 gal
burned in a car
Driving equivalent
68 days
of average US driving
Trees to offset
~17
over 40 years (~20/ton)

Offsetting is a last resort — most voluntary offsets deliver a fraction of the climate benefit they claim. Reducing flights (fewer trips, economy cabin, direct routing, trains for <1000 km) is far more effective than buying credits after the fact.

Found this useful?Email

Advertisement

What it does

Your flight emissions, in kg CO2. Business class = 2.9x economy per seat. Multi-leg adds 15%. Reducing flights beats offsetting.

Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/flight-carbon-footprint-calculator" width="100%" height="720" frameborder="0" loading="lazy" title="Flight Carbon Footprint Calculator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>
Embed docs →

How to use it

  1. Enter distance and cabin class.
  2. Read kg CO2 per passenger.
  3. See equivalent in gasoline and trees.

Advertisement