Economia emissions EV
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
~0.2 kg CO₂/km
About this calculator
The EV Emissions Savings calculator estimates CO₂ reduction by switching from gasoline-powered cars to electric vehicles (EVs). It considers the average emissions of 0.2 kg of CO₂ per kilometer driven by internal combustion engines. This tool provides a clear annual emission savings projection, helping users assess the environmental impact of their driving habits.
The calculation uses a simple formula: annual distance (in km) multiplied by 0.2 kg of CO₂/km to estimate total emissions avoided. For instance, a driver traveling 15,000 km per year would save approximately 3 tons of CO₂ annually. The calculator uses average values and may vary depending on the car model, driving conditions, and the local energy mix.
This tool is ideal for planning the transition to EVs or comparing mobility options. If you commute daily in a city with heavy traffic, you can adjust the distance to visualize environmental benefits. It's also useful for companies calculating their fleet's carbon footprint reduction.
Note that the efficiency of the electrical grid and the type of energy (renewable or fossil-fuel-based) affect the final result. The calculation does not include emissions from EV maintenance or manufacturing. For precise analysis, check regional and model-specific data.
Frequently asked questions
How does the calculator account for the electricity grid's energy source?
It uses global average emission factors for electricity. If your region relies more on renewables, results will be better. For local data, check your utility provider's indicators.
Does the calculation include EV manufacturing emissions?
No. The tool focuses only on operational emissions. EV production can emit equivalent to 1, 2 years of gasoline car use, depending on the model.
Can I use this to compare different cars?
Yes: adjust annual mileage. More efficient EVs (e.g., 0.15 kg CO₂/km) show higher savings for the same distance.
What annual mileage is needed for significant savings?
Over 12,000 km/year generates more than 2.4 tons of CO₂ savings. Drivers with less mileage still benefit but to a lesser extent.
Why does the result vary with the same distance?
Variations come from factors like vehicle efficiency, climate, and driving style. The tool uses averages for quick estimates.