Greenhouse Gas Equivalencies Calculator
Convert CO2 emissions into tangible, real-world equivalents. Based on EPA methodology.
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That's equivalent to...
Sources & methodology
All conversion factors are based on the US EPA Greenhouse Gas Equivalencies Calculator methodology.
1 car/year = 4.6 tonnes CO2 | 1 home/year = 7.94 tonnes | 1 gallon gasoline = 8.887 kg CO2 | 1 barrel oil = 0.43 tonnes
1 acre forest/year = 0.84 tonnes absorbed | 1 smartphone charge = 0.008 kg CO2 | 1 LED bulb switch/year = 34.9 kg CO2 saved | 1 NYC-LA flight = 0.9 tonnes per passenger
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Book a free strategy call →Understanding Greenhouse Gas Equivalencies
Greenhouse gas emissions are often reported in metric tonnes of CO2 equivalent, a unit that is difficult to grasp intuitively. Equivalency calculators translate these numbers into everyday terms: how many cars would produce that much CO2, how many homes could be powered, or how many acres of forest would be needed to absorb it. These comparisons, based on EPA-published conversion factors, make emissions data accessible to non-technical stakeholders and are widely used in sustainability reports, project proposals, and public communications.
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