Personal Carbon Footprint Calculator
Calculate your annual carbon footprint and discover which lifestyle changes have the biggest impact.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
Sum of home energy + driving + flights + diet emissions in tCO₂e/year
Average American emits 16 tons CO₂/year vs global average of 4 tons. Transportation and diet are the two biggest levers.
Frequently Asked Questions
What is the single biggest thing I can do for my carbon footprint?
For most people: go car-free or switch to EV (saves ~2.4 tons/yr), shift to plant-based diet (saves ~1.5 tons/yr), or avoid 1 transatlantic flight (saves ~1.5 tons/yr).