Should you convert your car to CNG? Our CNG vs Petrol vs Diesel comparison calculator gives you the definitive answer. Enter your monthly driving distance and fuel prices to see exact monthly savings, CNG kit payback period, and 5-year net savings.
CNG is significantly cheaper per km than petrol or diesel. But the ₹50,000-₹80,000 CNG kit installation cost needs to be recovered through savings. Our calculator shows exactly how many months until the kit pays for itself and your break-even monthly driving distance.
How to Use This Calculator
- Enter your monthly driving distance in km.
- Select current fuel type (Petrol or Diesel) and vehicle type.
- Enter fuel prices and mileage (auto-filled based on vehicle type).
- Enter the CNG kit cost.
- Click “Compare” to see monthly savings and kit payback period.
Frequently Asked Questions
How long does a CNG kit take to pay back?
Typically 8-18 months depending on your monthly driving distance and fuel price difference. For someone driving 1,500 km/month, a ₹65,000 CNG kit usually pays back in 10-12 months. The more you drive, the faster the payback.
Does CNG reduce engine life?
Modern sequential CNG kits are safe and don’t significantly affect engine life if properly maintained. Key: use a good quality kit from a reputed installer, get regular servicing, and keep the air filter clean. CNG actually burns cleaner than petrol, reducing carbon deposits.
What is the CNG price in India currently?
CNG prices vary by city. Delhi: ~₹75-78/kg, Mumbai: ~₹75-80/kg, Pune: ~₹72-76/kg, Ahmedabad: ~₹72-75/kg. Prices are revised periodically. CNG is roughly 50-60% cheaper per km compared to petrol.