Calculate your annual carbon footprint from transport, home energy, diet, and shopping. Compare to USA average and get reduction tips. Free CO2 calculator.
A business consultant in New York flies 60,000 miles per year and wants to understand how flights dominate her carbon footprint.
Result: Calculator shows flights alone create 9.2 tonnes CO2 — more than half her total. She commits to one transatlantic trip offset and two domestic trains per month.
A 33-year-old in California eating meat daily wants to know if going vegetarian actually makes a meaningful environmental difference.
Result: Calculator shows diet switch saves 1.5 tonnes CO2 per year — equivalent to not driving for 4 months. She commits to 4 meat-free days per week.
A homeowner in Texas wants to know if switching to solar and an EV together makes a meaningful dent in his footprint.
Result: Combined impact shows 4.8 tonne reduction annually — biggest single-year improvement available to him. He applies for solar quotes the same week.
A carbon footprint is the total greenhouse gas emissions caused by an individual, measured in tonnes of CO2 equivalent per year. It includes transport, home energy, food, and consumer purchases.
The average American produces about 16 tonnes of CO2 per year — one of the highest per capita in the world. The global average is about 4 tonnes. Our calculator compares you to both.
In order of impact: flying (1 transatlantic flight = 1.5 tonnes CO2), car use, home heating and electricity, diet (beef has 60x the emissions of vegetables), and consumer purchases.
To meet 2050 climate goals, individuals should aim for under 2.5 tonnes CO2 per year. Small changes in diet, transport, and home energy can reduce your footprint by 30-50%.
The highest impact actions are: fly less or take trains, switch to electric vehicle or cycle, eat less beef, switch to renewable energy, and buy less new stuff. Our tool quantifies each action's CO2 savings.
Yes — every FreeFixo tool, including the Personal Carbon Footprint Calculator, is 100% free with no paywall, no premium tier, and no usage limits. You do not need to create an account, enter a credit card, or share an email.