What is Carbon Footprint?
The Carbon Footprint Calculator estimates your annual greenhouse gas emissions measured in tonnes of CO₂ equivalent. It covers the three biggest sources of personal emissions: electricity use, car travel, and air travel.
The global average carbon footprint is about 4 tonnes CO₂ per person per year. India's average is about 1.9 tonnes, the US is about 16 tonnes, and the UK is about 5.5 tonnes. To limit global warming to 1.5°C, the target is 2 tonnes per person by 2050.
This is a simplified calculator covering the main sources. A complete footprint would also include food (especially meat consumption), heating/cooling, consumer goods, and waste. Diet alone can account for 20-30% of a person's footprint.
Formula
Electricity CO₂ = Monthly kWh × 12 × Grid Emission Factor / 1000 India grid factor: 0.82 kg CO₂/kWh
Driving CO₂ = Annual km × 0.21 kg CO₂/km (average petrol car)
Flights CO₂ ≈ 0.9 tonnes per round-trip (average domestic+international)
Total = Sum of all sources
Example — 300kWh/month, 15,000km/year, 2 flights: Electricity: 300 × 12 × 0.82 / 1000 = 2.95 tonnes Driving: 15,000 × 0.21 / 1000 = 3.15 tonnes Flights: 2 × 0.9 = 1.8 tonnes Total: 7.9 tonnes CO₂/year
How to use this Carbon Footprint Calculator?
1. Enter monthly electricity consumption (check your power bill). 2. Enter annual driving distance in km. 3. Enter number of round-trip flights per year. 4. See your total carbon footprint and breakdown by source.