Carbon Footprint Calculator
Estimate your annual CO₂ emissions from transport, home energy, and diet.
Transport (Monthly)
mi/mo
MPG
flights
mi/mo
Home Energy (Monthly)
kWh
therms
Diet
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Annual Carbon Footprint
0.0
metric tons CO₂ / year
(0 kg CO₂)
0
Trees to Offset
Breakdown
Transport
0 kg0%
Home
0 kg0%
Diet
0 kg0%
You
0.0tons CO₂/yr
Global Avg
4.7tons CO₂/yr
US Avg
16.0tons CO₂/yr
Documentation
How It Works
CO₂ Emission Formulas
Reduce Your Footprint
- Switch to renewable energy or purchase carbon offsets.
- Reduce meat consumption — even 1 day/week helps.
- Use public transit, carpool, or drive an EV.
- Improve home insulation to reduce heating/cooling needs.
- Fly less — one transatlantic flight ≈ 1 ton CO₂.
- Buy local produce to reduce transportation emissions.
Frequently Asked Questions