Greenhouse Gas Equivalencies Calculator

Did you ever wonder what reducing carbon dioxide (CO2) emissions by 1 million metric tons means in everyday terms? The greenhouse gas (GHG) equivalencies calculator can help you understand just that, translating abstract measurements and emissions data into concrete terms, such as the annual emissions from cars or households.

There are two options for entering reduction data into this calculator.

Please note that these estimates are approximate and should not be used for emission inventory or formal carbon footprinting exercises. Read more about the caveats and explanations on the Calculations and References page.





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Please note that these estimates are approximate and should not be used for emission inventory or formal carbon footprinting exercises. Read more about the caveats and explanations on the Calculations and References page

Amount Unit Gas
CO2 - Carbon Dioxide or CO2 Equivalent*
Carbon or Carbon Equivalent
CH4 - Methane
N2O - Nitrous Oxide
- Hydrofluorocarbon gases
- Perfluorocarbon gases
SF6 - Sulfur Hexafluoride

*If your estimated emissions of methane, nitrous oxide, or other non-CO2 gases are already expressed in CO2 equivalent or carbon equivalent, please enter your figures in the row for CO2 or carbon equivalent.