Carbon Footprint Calculator
Estimate your personal annual carbon footprint in tons of CO2. This calculator covers the three biggest contributors to individual emissions: transportation (driving and flying), home energy (electricity and natural gas), and dietary choices. See how you compare to the US average of 16 tons per year.
The average American has a carbon footprint of about 16 tons of CO2 per year, more than double the global average of 6.3 tons. The main sources break down as follows:
- Transportation (~29%): The average car emits about 4.6 tons CO2/year. A single round-trip cross-country flight adds 1.5 tons.
- Home energy (~20%): Electricity and heating account for roughly 3-5 tons per person depending on location, climate, and energy sources.
- Diet (~10-15%): Food production, especially meat and dairy, generates 1.5-3.3 tons per person per year depending on dietary choices.
The most impactful actions for reducing your footprint are: reducing air travel, driving less or switching to an electric vehicle, improving home insulation and switching to renewable energy, and reducing meat consumption. Even modest changes, like cutting one long flight per year or switching to a plant-based diet two days a week, can reduce your footprint by 1-3 tons annually.