Skip to content

Advanced · free · no sign-up

Carbon Footprint Calculator

Estimate your annual carbon footprint from home energy, driving, flights and diet, and see which areas have the biggest impact.

How it works Report a problem

Carbon Footprint Calculator

Enter your values below and press Calculate to see your result instantly.

Annual CO2 Emission
12.5 Tons
Trees Needed to Offset
568
Comparison to Global Avg
+125%
HOME TRANSPORT LIFESTYLE

About the Carbon Footprint Calculator

Estimate your annual carbon footprint from home energy, driving, flights and diet, and see which areas have the biggest impact.

How to use the Carbon Footprint Calculator

  1. Enter your Monthly Electricity (kWh), Monthly Natural Gas ($) and monthly car miles.
  2. Enter the number of short and long Flights per Year.
  3. Choose your Diet Type and press Calculate Footprint.

Formula and method

Each activity is multiplied by an average emission factor (kg of COâ‚‚ per kWh, per mile, per flight and per diet type) and the results are added up to give tonnes of COâ‚‚ per year.

Tips

  • The global average is roughly 4 to 5 tonnes of COâ‚‚ per person per year, and it is much higher in some wealthy countries.
  • Flights, driving and home heating are usually the biggest items.
  • Results are estimates; local electricity mixes differ widely.

Frequently asked questions

How can I reduce my footprint?
Use less energy at home, switch to renewable electricity, drive and fly less, and eat more plant-based meals.