Carbon Footprint Calculator
A quick estimate of your yearly CO₂e from the four choices that usually matter most: your car, your flights, your electricity and your diet. See which one dominates your total and where a change pays off most.
Carbon Footprint
Rough CO₂ estimate from daily life
Rough estimate using average emission factors — indicative only.
How it works
- Uses typical emission factors — treat results as an order of magnitude.
- Driving and flying usually dominate individual footprints.
- One return long-haul flight can equal a year of driving.
- CO₂e (CO₂-equivalent) bundles all greenhouse gases into one comparable figure.
Worked example: a typical European profile
- 1Driving 12,000 km in a petrol car: ≈ 2.0 tonnes.
- 2One return flight to southern Europe: ≈ 0.6 tonnes.
- 3Electricity for a 2-person flat: ≈ 0.8 tonnes; mixed diet: ≈ 1.7 tonnes.
≈ 5.1 tonnes CO₂e per year — near the European average
What common choices emit per year
| Activity | Approx. CO₂e per year |
|---|---|
| Driving 10,000 km (petrol) | ≈ 1.7 tonnes |
| One return long-haul flight | ≈ 1.5–3 tonnes |
| Electricity, average home | ≈ 1–2 tonnes |
| Meat-heavy diet | ≈ 2.5 tonnes |
| Vegetarian diet | ≈ 1.5 tonnes |
| Vegan diet | ≈ 1.0 tonne |
Rounded emission factors for orientation — exact values depend on your car, grid mix and habits.
Frequently asked questions
What is a typical footprint?
Around 4–6 tonnes of CO₂e per person per year in Europe and roughly double that in the United States.
What is the single biggest reduction I can make?
For most people it is flying less or driving less. Skipping one long-haul return flight saves more than a year of many other changes combined.
Does an electric car remove driving emissions?
Not entirely, but it cuts them substantially — by half or more on an average grid, and far more on renewable electricity.
How accurate is this estimate?
It uses average emission factors, so expect accuracy within roughly ±30%. It is meant to show the relative size of each source, not an exact total.
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