Flight Carbon Footprint Calculator
Understand the carbon footprint of your flights. Calculate CO₂ emissions per person based on distance, cabin class, and radiative forcing.
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How This is Calculated?
Base emissions = distance × 0.115 kg CO₂/km (economy short-haul) to 0.195 kg CO₂/km (economy long-haul). A radiative forcing multiplier of 1.9 is applied to account for high-altitude contrails and non-CO₂ effects. Business and first class have higher per-passenger multipliers due to larger seat space.
What's the difference between Short and Long Haul?
Short-haul flights under 1,500km have higher per-km emissions because the fuel-intensive take-off and climb phases represent a larger proportion of the journey. A 500km domestic flight can emit more per km than a 5,000km transatlantic flight.
What's the key thing to understand about Carbon Offsets?
Flight carbon offsets fund renewable energy, forest protection, or methane capture projects. Quality matters — look for Gold Standard or Verra-certified projects. Offsets don't eliminate emissions but do fund equivalent removals or reductions elsewhere.
What's the key thing to understand about Travel Safety and Preparation?
Before any international trip: check the Foreign Commonwealth and Development Office (FCDO) travel advice for your destination at gov.uk/foreign-travel-advice — advisories change frequently. Register your trip with the FCDO if travelling to a high-risk destination. Take two copies of all documents (passport, insurance, bookings) — one in luggage, one left at home with a trusted contact. Share your itinerary with someone at home. Travel insurance is not optional — a single overseas medical emergency can cost tens of thousands of pounds without cover. Always check your policy explicitly covers your specific activities (winter sports, watersports, high-altitude trekking often need separate cover) and any pre-existing medical conditions, since a mismatch here is the most common reason claims get refused.