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Home Vehicle Calc CNG vs Petrol Calculator

CNG vs Petrol
Calc

Is installing a CNG kit worth it? Compare the running costs, kit price, and potential investment returns to find your exact break-even point.

Pricing
Extra Upfront Cost: ₹1,00,000
Running Costs
Yearly Petrol Cost: ₹1,20,000
Yearly CNG Cost: ₹58,846
Maintenance & Insurance
Opportunity Cost

Return earned if you invested the savings, adjusted for inflation.

Estimated Break-Even
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Calculated based on fuel, maintenance, and investment returns.

Financial Breakdown

Extra Upfront Cost₹0
Fuel Savings/Yr₹0
Maint Savings/Yr₹0
Insur Savings/Yr₹0
Total Yearly Save ₹0
Yearly Financial Timeline
Year Petrol Total CNG Total Savings Opp. Cost Net Position

About This Calculator

CNG cars generally cost ₹80,000 to ₹1 Lakh more than their petrol counterparts (or this is the cost of an aftermarket kit). While CNG mileage is significantly higher, maintenance and insurance costs are also slightly higher. This calculator tells you if your monthly driving distance justifies the extra hassle and cost of CNG.

Frequently Asked Questions

How often does the CNG cylinder need testing?
In India, CNG cylinders must be hydro-tested every 3 years for safety compliance. This costs around ₹1,500 - ₹2,500 per test.
Does CNG cause power loss?
Yes, there is typically a 10-15% drop in peak power when running on CNG compared to petrol. However, for daily city driving, this is usually negligible.
Is boot space completely lost?
In most factory-fitted CNG cars, the cylinder takes up 60-80% of the boot space. Some new models (like Tata's twin-cylinder tech) offer better usable boot space.

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