How to calculate your carbon emissions (co2) from driving

Here's how to easily see how much co2 carbon emissions you emit from driving your car – it might surprise you!

Updated on 
January 23, 2024
Blogpost
January 23, 2024

How to calculate your carbon emissions (co2) from driving

Here's how to easily see how much co2 carbon emissions you emit from driving your car – it might surprise you!

Why Calculate & Offset Emissions from Driving: Understanding the Problem

Global warming, driven by carbon emissions, is one of the most pressing challenges of our time. The transportation sector, particularly personal vehicles, contributes significantly to global carbon emissions. Understanding and offsetting these emissions is crucial in our fight against climate change. By calculating and compensating for the emissions from our vehicles, we can take responsibility for our environmental impact and contribute to a sustainable future.

Why It's Usually Hard to Calculate Emissions from driving

Calculating the exact carbon emissions from driving can be a daunting task. It requires precise information about your vehicle's specifications, such as fuel efficiency, type of fuel used, and distance traveled. For most people, gathering this data and translating it into an accurate carbon footprint is complex and time-consuming.

Using CO2 Calculators: Simplifying Emission Calculations

To simplify this process, there are tools like this CO2 calculator which is specific to cars and helps get a general sense for the co2 emissions of your driving. However, you usually have to know the efficiency of your vehicle and the distance you travelled.

However, for a more accurate assessment, the Roadtrip app goes a step further by using the actual car type and specifications to provide a personalized emission report. This feature makes it incredibly easy for users to understand their vehicle's environmental impact, just by typing in where you're going and your car model, the app shows you the estimated carbon emissions of the trip. It's super easy!

Roadtrip Gas Calculator

See the gas cost from A to B

Just type in your destination and your car model and the Roadtrip app shows you the cost of gas – based on your exact car model and current gas prices.

You can even add people to the trip and see how much the gas would cost per person. Super clever!

No items found.
No items found.

How to Offset Your Emissions: Practical Steps

Once you know your carbon footprint, the next step is to offset it. Offsetting involves investing in projects that reduce carbon emissions, such as renewable energy, forestation, or energy efficiency initiatives. There are services available that make offsetting straightforward, allowing users to directly compensate for their vehicle's emissions. This proactive approach supports critical environmental projects while counterbalancing your personal carbon output.

Planting forests is a common and effective way to offset emissions

Differences in Emissions Between Gas Cars and EVs: A Comparative Analysis

The environmental impact of different types of vehicles varies significantly, primarily due to their fuel sources and efficiency. Let's delve into a comparative analysis of traditional gasoline cars, hybrid vehicles, and electric vehicles (EVs), focusing on their carbon emissions.

Comparing Popular Models

If you want to directly compare the emissions of popular car models, getting the Roadtrip app is a great way to see the emissions for each based on a specific car you choose, based on where you live.

For example comparing a 2018 Tesla Model 3 to a 2018 VW Golf, you can see that the VW has more than 8x the carbon emissions footprint to drive the same distance, while also being almost double the cost to drive! That's not to mention any penalties that the government might set for combustion engine vehicles. So you can quite clearly see it's a massive difference when driving an EV (but as mentioned, there are still emissions associated with generating electricity)

The difference between a Tesla and a VW, see the green emissions label in the bottom left

Traditional Gasoline Cars: The Baseline Emissions

Gasoline cars, the most common type on roads today, operate solely on internal combustion engines. These engines burn petrol to produce power, releasing CO2 as a byproduct. The average emissions for gasoline cars vary depending on the model and engine efficiency but generally fall within the range of 120 to 180 grams of CO2 per kilometer. These vehicles set the baseline for comparison due to their widespread use and historical prevalence.

Hybrid Vehicles: Bridging the Gap

Hybrid vehicles represent a middle ground between gasoline cars and fully electric vehicles. They combine an internal combustion engine with an electric motor, utilizing battery power for short distances or to assist the engine. This dual system reduces reliance on petrol and lowers emissions. Hybrids can emit around 45 to 90 grams of CO2 per kilometer, depending on the model and driving conditions. This reduction is significant when compared to traditional gasoline cars, offering a more eco-friendly alternative while still utilizing conventional fuel.

Electric Vehicles (EVs): The Greenest Option

Electric vehicles (EVs) run entirely on electric power, sourced from batteries. They produce zero emissions at the point of use, meaning no CO2 is released while driving. This factor makes them the most environmentally friendly option among personal vehicles. The emissions associated with EVs primarily come from electricity production. If the electricity is generated from renewable sources, the overall carbon footprint of EVs can be minimal. However, in regions where electricity is primarily produced from fossil fuels, the indirect emissions associated with EVs can be higher, but still generally lower than gasoline cars.

Why Offsets Are Useful for Driving: Bridging the Gap to Greener Alternatives

While the ultimate goal is to transition to greener alternatives like EVs, it's not immediately feasible for everyone. Offsetting provides a practical way for drivers of gasoline and diesel vehicles to mitigate their environmental impact in the interim. By offsetting emissions, drivers can contribute to a greener planet while transitioning to more sustainable driving options as they become accessible.

In summary, understanding and offsetting emissions from driving is a crucial step towards environmental responsibility. Tools like the Roadtrip app and CO2 calculators simplify this process, making it easier for everyone to play a part in the global effort to combat climate change. Whether through adopting cleaner vehicle technology or offsetting emissions, every action counts in our journey towards a more sustainable future.

Frequently Asked Questions

Q: How much CO2 does a car emit?

A: The CO2 emissions of a car depend on its fuel efficiency, type of fuel, and driving conditions. On average, a gasoline car emits about 120-180 grams of CO2 per kilometer, but this can vary widely.

Q: What are the CO2 emissions from producing a car?

A: Manufacturing a car, including extraction and processing of materials, assembly, and transportation, emits a significant amount of CO2. For a conventional gasoline car, this can be around 6 to 8 tonnes of CO2, whereas for electric vehicles, it tends to be higher due to the battery production but varies based on the manufacturing process and materials used.

Q: What causes carbon emissions in cars?

A: In gasoline and diesel cars, carbon emissions primarily come from burning fossil fuels. In electric cars, while there are no direct emissions, indirect emissions come from the electricity used to charge the batteries, depending on the energy source.

Q: What is the carbon footprint of a Tesla?

A: The carbon footprint of a Tesla or any electric vehicle depends on the electricity source for charging. If charged with renewable energy, the footprint is minimal. However, if the electricity comes from fossil fuels, indirect emissions can occur.

Q: Is Lithium Mining worse than fossil fuels?

A: Lithium mining has environmental impacts, such as water usage and habitat disruption. However, when comparing the overall life cycle, including use and emissions, electric vehicles (which use lithium batteries) generally have a lower environmental impact than vehicles running on fossil fuels.

Q: Are electric cars really better for the environment?

A: Yes, generally speaking, electric cars are better for the environment compared to traditional gasoline cars, especially when charged with electricity from renewable sources. They have lower life cycle emissions, even considering battery production.

Q: Is Tesla actually good for the environment?

A: Tesla vehicles, as electric cars, can be good for the environment, particularly when charged with renewable energy. They produce zero direct emissions, and their overall impact is lower compared to gasoline cars, despite the energy-intensive battery production.

Q: What is the biggest contributor to climate change?

A: The biggest contributors to climate change are the burning of fossil fuels for electricity, heat, and transportation, deforestation, and industrial processes. The energy sector, primarily through coal, oil, and natural gas, is the largest source of greenhouse gas emissions.