Car vs Bike Calculator
Find CO₂ and money saved by biking instead of driving.
See the environmental and fitness payoff of biking instead of driving.
How the Math Works
The Car vs Bike Calculator uses a straightforward formula to estimate CO₂ savings: CO₂ saved (kg) equals your annual kilometers driven multiplied by your car's emissions factor (grams per kilometer), divided by 1,000. For example, driving 10,000 km/year in a car emitting 150 g/km results in 1,500 kg of CO₂ saved annually by biking. The formula converts grams to kilograms for easier interpretation, focusing on environmental impact reduction.
Practical Applications
To use the calculator, input your total annual driving distance and your car's average CO₂ emissions per kilometer (found in manufacturer specifications or fuel efficiency charts). The tool then computes your potential CO₂ savings and compares them to monetary savings from reduced fuel costs. For instance, if your car consumes 8 liters of fuel per 100 km and fuel costs $1.50/liter, biking saves $120 annually while also cutting emissions, making it a dual win for finances and sustainability.
Day-to-Day Use
This calculation empowers everyday decisions by quantifying the tangible benefits of biking. By switching to a bike for short trips, you not only reduce your carbon footprint but also save money on fuel and vehicle maintenance. Over time, these savings accumulate: biking 10 km daily could save hundreds in fuel costs yearly while contributing to cleaner air and personal health. The calculator helps visualize these gains, encouraging sustainable habits through clear, relatable metrics.
Worked example
8 km, 5 trips/week → 4,160 km, ~707 kg CO₂ saved.
FAQ
EV instead?
Lower the car g/km to compare with an electric car.