Carbon Footprint Calculator
Estimate your annual CO2 emissions
🚗 Transport
🏠 Home
🍽️ Lifestyle
Your annual carbon footprint
0
tonnes CO₂-equivalent / year
Breakdown
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Free carbon footprint calculator — your annual CO2
Estimate your annual carbon footprint from transport, home energy, diet, and consumption. Compare to country averages and climate targets. Identify biggest reduction opportunities.
How to use this tool
- 1
Transport section
Your yearly car km + fuel type, public transport usage, flights.
- 2
Home section
Electricity + heating consumption, home size, renewable energy %.
- 3
Lifestyle section
Diet type, shopping habits. Output: annual CO2 tonnes + comparison.
Reference points
- Climate target (1.5°C): 2.0 tonnes/year per person by 2050
- Global average: 4.7 tonnes
- EU average: ~8 tonnes
- USA average: ~16 tonnes
- Transatlantic flight: ~2 tonnes one way
- Driving 15,000 km gas: ~2.5 tonnes
- Heavy meat diet: ~3.5 tonnes/year
Frequently Asked Questions
What's a typical carbon footprint?
Global average: 4.7 tonnes CO2/year. USA: ~16 tonnes. EU: ~8 tonnes. Climate target: 2 tonnes/year by 2050 to hit 1.5°C goal. Most individuals far exceed sustainable limits.
Biggest footprint contributors?
For most: (1) flights — one transatlantic flight = 1-2 tonnes. (2) car driving — 10K km = 1.5-2 tonnes gas. (3) home heating especially with gas/oil. (4) meat-heavy diet. Electricity less if grid is clean.
Is offsetting meaningful?
Offsets vary wildly in quality. Tree planting is slow + reversible. Direct air capture (Climeworks) is real but expensive ($500-1000/tonne). Better: reduce first, offset the rest. Gold Standard / Verra certifications are least bad.
Biggest levers to reduce footprint?
(1) Skip long-haul flights — largest per-hour impact. (2) Eat less meat (especially beef). (3) Electric car if you drive a lot. (4) Heat pump instead of gas. (5) Insulation. Don't waste effort on small stuff (plastic straws) vs big stuff (flights).
Is this exact?
No — all footprint calculators are estimates with ±30% variance. Useful for relative comparison + identifying big levers, not precise accounting.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.