Carbon Footprint Calculator
Measure your personal impact on the Earth. See exactly how many tons of CO2 you produce every year.
Transport
Flights
Home Energy
Diet
Carbon Footprint Calculator Methodology & Instructions
Step-By-Step Guide
- Estimate your weekly driving miles in a gas car.
- Select your primary diet (meat-eater, vegetarian, etc.).
- Enter the number of flights you take per year.
- Click calculate to aggregate your total tonnage.
- Compare your output to the global average.
EPA Emissions Calculations
CO2e (tons) = (Vehicle Miles × 0.4kg) + (Diet Factor) + (Flights × 1.2 tons)
Understanding Your Results
| Annual Output | Status | What It Means |
|---|---|---|
| Under 4 Tons | Eco Champion | You are below the global average and well within the target range required to halt catastrophic climate change. |
| 4 – 10 Tons | Average Global Citizen | You are within normal ranges for a developed nation, but there is still plenty of room to optimize your travel or diet. |
| Over 10 Tons | High Emitter | Your lifestyle produces more emissions than multiple people combined from developing nations. Consider cutting back on flights or meat. |
Frequently Asked Questions
What is a normal carbon footprint?
The global average carbon footprint is roughly 4-5 tons per person per year, but the average in the United States is closer to 16 tons. To avoid the worst impacts of climate change, the global average needs to drop to under 2 tons by 2050.
How can I lower my carbon footprint quickly?
The fastest ways to dramatically cut your carbon output are reducing red meat consumption, avoiding long-haul flights, and transitioning from a gas-powered car to an EV, public transit, or cycling.
Standardized Calculation Engine · Last updated July 6, 2026