Flight carbon footprint calculator
Estimate the CO₂ emissions of a flight from its distance.
Related tools
All Consumption & comfort tools →The Flight carbon footprint calculator turns Distance (km), Passengers into CO₂ per person (kg), Total CO₂ (kg), instantly and for free. For instance, with Distance (km) = 5,000 and Passengers = 1 it returns CO₂ per person (kg) = 750 and Total CO₂ (kg) = 750.
How to use it
- Enter your values: Distance (km), Passengers.
- Read the result instantly: CO₂ per person (kg), Total CO₂ (kg).
Frequently asked questions
What does the Flight carbon footprint calculator actually compute?
It takes Distance (km) and Passengers and derives CO₂ per person (kg) and Total CO₂ (kg) from them. The calculation is live as you type, so the result updates on every change.
What information do I need to provide?
2 values: Distance (km) and Passengers. Nothing else is required — no account, no file upload.
Can you show a worked example?
With Distance (km) = 5,000 and Passengers = 1, the calculator returns CO₂ per person (kg) = 750 and Total CO₂ (kg) = 750. Those figures come from running this exact tool, so you can reproduce them by entering the same values.
What happens if I enter larger values?
It moves a lot. Using Distance (km) = 5,500 and Passengers = 2 instead, CO₂ per person (kg) goes from 750 to 825 — which is why it is worth testing a few scenarios rather than trusting a single figure.
What does it give for smaller values?
Scaled down to Distance (km) = 4,500 and Passengers = 1, CO₂ per person (kg) comes out at 675. The relationship is worth checking at both ends before you rely on a single result.
When would I actually use this?
Putting a number on what something costs or feels like: an appliance's share of the bill, a flight's emissions, a household's footprint, or how cold the wind actually makes it.
What is the most common mistake?
Reading a nameplate rating as an average. A 2000 W appliance draws that at full load, not continuously — a fridge rated at 150 W runs a fraction of the hour, so its yearly cost is nowhere near 150 W times 8760.
How accurate is it, and what are the limits?
Rough estimate — actual emissions vary by aircraft and class.
What is the difference between the Flight carbon footprint calculator and the Carbon Footprint Calculator?
This one returns CO₂ per person (kg) and Total CO₂ (kg); the Carbon Footprint Calculator returns Result. That is the whole difference — open the one whose figure you need.
Is there a tool for the next step?
Flight distance calculator is the closest one after this: The distance between two airports as the crow flies — the great-circle distance from the haversine formula — plus a realistic flight distance with a routing allowance and an estimated flight time from the aircraft's cruising speed. Enter IATA codes (JFK, CDG…), city names, or coordinates.