CO2 Calculator by mbay.dev

See how much CO₂ emissions and money you save by biking instead of driving!

Available on Firefox for Android™

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About this extension

CO₂ Calculator is a simple, privacy-friendly popup tool that shows you exactly how much CO₂ you avoid and money you save every time you choose your bike instead of your car.

Just enter your daily biking miles and local fuel price → get instant daily, weekly, monthly, and yearly savings in kg of CO₂ avoided and US dollars saved.

Features:
• Works 100% offline
• No permissions, no tracking, no data collection
• Choose your vehicle type (compact, average car, SUV/truck)
• Motivational medal system – become a Gold Eco-Warrior!
• Clean, beautiful design that fits perfectly in Firefox

Every mile you bike matters. Thank you for helping the planet! 🚴💚

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