Car CO2 Emissions per Mile Calculator

The average car emits around 2.3 kg (5.07 pounds) of CO2 per mile traveled. This estimation can vary depending on factors such as the type of fuel used, vehicle efficiency, and driving conditions.

Car CO2 Emissions Calculator

Car Co2 Emissions per mile Calculator

Here’s a table with estimated car CO2 emissions per mile for various fuel types and efficiency levels:

Fuel TypeMPG (Miles per Gallon)CO2 Emissions per Mile (kg/mile)
Gasoline (Average)250.092
Diesel (Average)300.077
Electric (Average)N/A (zero tailpipe emissions)0.000
Hybrid (Average)450.051
Plug-in Hybrid500.046
Hydrogen Fuel CellN/A (zero tailpipe emissions)0.000

Please note that these are approximate estimations and real-world values can vary depending on vehicle models, driving conditions, and other factors. Electric and hydrogen fuel cell vehicles have zero tailpipe emissions but may indirectly produce emissions depending on the energy source used for electricity or hydrogen production.


1. How much CO2 does a car produce per mile? The average passenger car emits approximately 2.3 kg of CO2 per mile (1.43 pounds per mile). This can vary significantly depending on factors like the type of fuel, vehicle efficiency, and driving conditions.

2. How do you calculate CO2 emissions per mile? To calculate CO2 emissions per mile, you need to know the fuel efficiency of your vehicle (in miles per gallon, or mpg) and the CO2 emissions associated with the fuel type. Then, you can use this formula: CO2 emissions per mile = (1 / vehicle’s mpg) x CO2 emissions from the fuel.

3. How do you calculate CO2 emissions on a car? To calculate the total CO2 emissions of a car, you need to know its annual mileage and the vehicle’s fuel efficiency (mpg). Then, you can use this formula: Total CO2 emissions = (annual mileage / mpg) x CO2 emissions from the fuel.

4. What is the carbon footprint of a car travel? The carbon footprint of a car trip depends on the distance traveled, the vehicle’s fuel efficiency, and the type of fuel used. It can range from a few kilograms for short trips to hundreds of kilograms for long journeys.

5. How much CO2 do I save by not driving? On average, not driving a car for a day can save approximately 10-15 kg of CO2 emissions, depending on your vehicle’s fuel efficiency and daily mileage.

6. How much CO2 is in an air mile? Estimating the CO2 emissions per air mile can vary significantly depending on factors like aircraft type and distance. On average, a passenger flight produces around 0.2-0.3 kg of CO2 per mile.

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7. How do you calculate carbon miles? Carbon miles represent the emissions associated with traveling a certain distance. To calculate carbon miles, you can use the formula: Carbon miles = (Distance traveled) x (CO2 emissions per mile).

8. Does CO2 emissions affect mpg? CO2 emissions are closely related to fuel consumption and, therefore, can indirectly affect miles per gallon (mpg). Improved fuel efficiency generally leads to lower CO2 emissions per mile.

9. How much CO2 per air mile per person? The CO2 emissions per air mile per person can vary widely depending on factors like the flight’s distance, aircraft type, and passenger load. On average, it can range from 0.2 to 0.3 kg of CO2 per air mile per person.

10. What is the formula for calculating emissions? The formula for calculating emissions depends on the specific type of emissions you are interested in (e.g., CO2, NOx, or particulate matter). Generally, it involves multiplying the relevant emission factor (e.g., grams of pollutant per unit of fuel burned) by the amount of fuel consumed or distance traveled.

11. How do you calculate exhaust emissions? Exhaust emissions are typically calculated by measuring the amount of a specific pollutant (e.g., CO2, NOx) produced per unit of fuel burned, and then multiplying this by the amount of fuel consumed.

12. What is a vehicle footprint? A vehicle footprint refers to the area on the ground covered by a vehicle’s tires. It is used to determine the emissions standards and fuel economy requirements that apply to a vehicle under regulations like the Corporate Average Fuel Economy (CAFE) standards.

13. Which car has the highest carbon footprint? Large, fuel-inefficient vehicles such as some SUVs and trucks tend to have the highest carbon footprints among passenger vehicles.

14. How many car trips are under 2 miles? Many short car trips of under 2 miles can be replaced with more sustainable transportation options like walking, cycling, or public transit. The exact number of such trips varies by location and individual habits.

15. Is walking better than driving for carbon footprint? Yes, walking is generally better for your carbon footprint than driving, especially for short distances. Walking produces no direct emissions, while driving a car emits CO2 and other pollutants.

16. How much CO2 does idling a car use? Idling a car can consume around 0.2-0.5 gallons of fuel per hour, which corresponds to emitting roughly 4.5-11.6 kg of CO2 per hour.

17. What is the easiest and cheapest way to reduce CO2 emissions? The easiest and cheapest ways to reduce CO2 emissions include using public transportation, carpooling, walking or biking for short trips, improving home energy efficiency, and reducing meat consumption.

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18. Which pollutes more, cars or planes? Planes generally produce more CO2 emissions per mile per passenger than cars. However, the environmental impact of air travel also includes non-CO2 factors like contrail formation and high-altitude emissions.

19. What’s worse for the environment, flying or driving? Flying is typically worse for the environment on a per-mile basis due to the high energy requirements of aviation and the altitude at which emissions are released. However, the total impact depends on the distance traveled and the number of passengers.

20. What CO2 level is too high in air? The safe and typical outdoor atmospheric CO2 concentration is around 400-420 parts per million (ppm). Levels significantly higher than this can contribute to climate change and may have health implications in enclosed spaces.

21. How many trees does it take to offset 1 ton of CO2? The number of trees needed to offset 1 ton of CO2 depends on tree species, age, and local climate conditions. On average, it might take around 40-50 mature trees to absorb 1 ton of CO2 over several years.

22. How much carbon does a truck emit per mile? A typical large truck (e.g., a semi-truck) can emit around 1.6 kg of CO2 per mile. Smaller trucks and delivery vans may have lower emissions.

23. How much CO2 does a tree absorb? A mature tree can absorb roughly 48 pounds (22 kg) of CO2 per year. The amount varies based on tree species, age, and local conditions.

24. What causes high CO2 emissions in cars? High CO2 emissions in cars are primarily caused by inefficient engines, poor fuel economy, and the use of fossil fuels. Vehicle size and weight also play a significant role.

25. Why is highway mpg higher than city mpg? Highway mpg is typically higher than city mpg because highway driving involves steady speeds and less frequent stops and starts, which are more fuel-efficient than the stop-and-go traffic encountered in city driving.

26. How can I reduce my gas emissions? To reduce gas emissions, you can drive fuel-efficient vehicles, carpool, use public transportation, walk or bike when possible, maintain your vehicle, and reduce unnecessary idling.

27. Is a plane more fuel efficient than a car? Commercial airplanes are generally more fuel-efficient than cars on a per-passenger-mile basis for long-distance travel. However, for shorter distances, cars can be more efficient.

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28. How do you calculate CO2 emissions per person? To calculate CO2 emissions per person, you need to know the total emissions (e.g., from transportation, home energy use, and other sources) and divide it by the population in question.

29. How much CO2 does a 747 produce per mile? A Boeing 747 can emit around 4.8 kg of CO2 per mile per passenger on a long-haul flight.

30. How much CO2 is in a gallon of diesel fuel? On average, there are approximately 22 pounds (10 kg) of CO2 emissions per gallon of diesel fuel when it is burned.

31. How do you calculate CFM for a car exhaust? CFM (Cubic Feet per Minute) for a car exhaust is not typically calculated but rather measured using specialized equipment to assess the volume of air flowing through the exhaust system.

32. What percent of exhaust is CO2? The exact percentage of CO2 in exhaust gases depends on the type of fuel and combustion conditions but can range from about 10% to 15% in typical gasoline-powered vehicle emissions.

33. How do you calculate CO2 equivalent? CO2 equivalent (CO2e) is calculated by converting the emissions of various greenhouse gases (e.g., methane and nitrous oxide) into their CO2 equivalent based on their global warming potential over a specific time period.

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