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Carbon Footprint Calculator
Estimate your annual CO2 emissions from home energy, transportation, diet, and lifestyle choices.
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All calculations run in your browser — nothing stored or sent. More free tools · Etsy Shop
Frequently Asked Questions
What is the average carbon footprint in the US?
About 14-16 metric tons CO₂ per person per year — roughly 3× the global average and 7× the Paris Agreement target of ~2 tons per person by 2050. Transportation and food account for about 28% each of individual footprints.
What changes reduce carbon footprint the most?
High-impact actions: (1) Long-haul flights — one return transatlantic flight = 1.5-3 tons CO₂. (2) Diet — going vegan saves 1.5t/year vs average omnivore. (3) Car choice — EV vs gas car saves 2-4t/year. (4) Home energy — heat pumps, better insulation. Individual recycling has relatively low impact compared to these.