Carbon Footprint Calculator
Estimate your yearly carbon footprint in tonnes of CO2 from electricity, driving, flights and diet — free online. — free, fast and private.
Your result will appear here.
How to use Carbon Footprint Calculator
- Enter your monthly electricity use in kWh and monthly driving in kilometres.
- Add your flights per year and choose your diet.
- Click Calculate Footprint to see your yearly CO2 estimate.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
What counts in a personal carbon footprint?
This calculator covers home electricity, driving, short-haul flights and diet — the biggest everyday sources. Heating, long-haul flights, shopping and other consumption add more, so treat the result as a rough estimate.
Is this tool free to use?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Is my data uploaded or stored?
No. This tool runs entirely in your browser — nothing you enter is uploaded to a server.
Can I use it on my phone?
Yes, it is fully mobile-friendly and works in any modern browser on phone, tablet or computer.