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Carbon Footprint

The average American generates 16 metric tons of CO₂ per year — 2× the global average. Our carbon footprint calculator breaks down your emissions by category: home energy, transportation, diet, and goods/services — and compares you to national and global averages, with actionable reduction recommendations sorted by impact.

Annual COâ‚‚

Voiture :
Vols :
Électricité :
Régime :
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À propos de Carbon Footprint Calculator

The average American generates 16 metric tons of CO₂ per year — 2× the global average. Our carbon footprint calculator breaks down your emissions by category: home energy, transportation, diet, and goods/services — and compares you to national and global averages, with actionable reduction recommendations sorted by impact.

Comment l'utiliser

  1. Enter your home energy use: electricity (kWh/month) and natural gas or heating oil.
  2. Enter transportation: miles driven and vehicle MPG, flights per year, public transit use.
  3. Enter diet type: meat-heavy, average, vegetarian, or vegan.
  4. See your total annual CO₂e (CO₂ equivalent) in metric tons, with category breakdown.

Formule et méthodologie

Electricity: kWh × grid emission factor (US average: 0.386 kg CO₂/kWh, varies by state). Natural gas: therms × 5.302 kg CO₂/therm. Driving: miles × (8.887 kg CO₂/gallon ÷ MPG). Flying: flight miles × 0.255 kg CO₂/mile (short-haul) to 0.195 kg (long-haul). Diet: beef = ~27 kg CO₂e/kg, chicken = 6.9 kg, plant-based = 2 kg.

Cas d'usage courants

  • Personal sustainability planning: identifying your highest-impact changes
  • Corporate sustainability reporting: employee commute emissions
  • Event planning: estimating attendee travel footprint
  • Comparing the impact of diet change vs buying an EV
  • Carbon offset purchasing: determining how many tons to offset

Questions fréquentes

It depends on your profile. For frequent flyers: reducing flights has the highest impact (a transatlantic round-trip = ~1.5 tons CO₂e). For daily drivers: switching to an EV or moving closer to work. For diet: eliminating beef (beef emits 20× more than chicken per gram of protein). Heating: switching from oil to heat pump. Calculate yours first — the answer varies dramatically by lifestyle.
Quality varies enormously. High-quality offsets include reforestation, methane capture, and direct air capture with verified third-party certification (Gold Standard, Verra VCS). Low-quality offsets — especially some forestry credits — have faced scrutiny for double-counting or non-permanence. The consensus: reduce first, offset only what you cannot eliminate, and choose verified projects.

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