How the Automotive Carbon Trail™
emissions calculator works

You can estimate the carbon dioxide emissions from each of your Cars, Pickups, SUV's or Street Rods using the database OR input the average distance you drive and a your average Miles Per Gallon (MPG) each vehicle gets to derive an overall emissions estimate. This number should be regarded as a general guide rather than a precise figure.

How the carbon calculator works
This calculator estimates the amount of carbon dioxide your Cars, Pickups, SUV's or Street Rods put in the atmosphere every year based on average Miles Per Gallon (MPG) each vehicle gets. This number should be regarded as a general guide rather than a precise figure.

You can either enter the MPG that you know your car gets or we can use the average gas mileage of your car based on the year, make, and model posted by the Environmental Protection Agency's ratings, which you can explore more fully on their web site at fueleconomy.gov.

If you do not put in a specific MPG, we will make an assumption about how the ratio of highways vs. city street miles driven that you spend half your time on highways.
The average American drives 12,000 miles per year. However you can input this figure yourself. Then, we figure out how many gallons of gas you burn every year.
Next, we multiply the number of gallons of gas by 19.564, diesel by 20.214, to conclude how many pounds of carbon dioxide your are responsible for. [Please Note: A typical car puts out many times its own weight in carbon dioxide every year because when fuel burns, it combines with oxygen in the air and becomes much heavier.]

Each web site my have a slightly different number of pounds of carbon dioxide due to their method of calculation and which other greenhouse gases that they include in the calculation or different assumptions about your driving habits, or a different fuel rating for your car.

What if you use our database, and you can't find your car?
In the event that you decide to use the posted EPA averages, and your car is missing from our database, then estimate its yearly carbon output by inputting your car's average miles per gallon and the distance you drive each year.

Why would my car not be in your database?
The fuel mileage data we use is from the Environmental Protection Agency's ratings. However, manufacturers do not test every new vehicle offered for sale. They are only required to test one representative vehicle—typically a preproduction prototype—for each combination of loaded vehicle weight class, transmission class, and basic engine. If it is not covered by the EPA then it will probably not be in our database.

Your Purchases may be Tax Deductable, consult your accountant.

The National Organization for American Humanities is an accountable American non-profit 501(c)3 and World entity. We have accepted the challenge to support those causes and activities which directly benefit the world. Presently, NOAH’s primary goal is to support environmental education and elimination of Global Warming caused by Greenhouse Gases.