Green Commute CO₂ Calculator
Compare CO₂ emissions across different commute modes for a given distance and frequency.
Inputs
Annual CO₂
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Weekly CO₂
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In metric tons
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Tree-years to absorb
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Gas equivalent saved
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About Green Commute CO₂ Calculator
Average car emissions
EPA reports average passenger vehicle emits ~404g CO₂/mile (~0.89 lb/mi). Real-world ranges 200-600g/mi depending on size, efficiency, driving style.
EVs are not zero
EVs emit ~110g CO₂/mile in the US grid mix on average (much less in WA/CA hydro/solar regions). 30-70% lower than gas cars, but never zero unless powered by 100% renewable.
Best mode
Walking/biking is zero direct emissions. Public transit cuts per-passenger emissions ~50-70% vs solo driving. Carpooling 2x = halve the per-person impact.