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CNG vs Petrol Break Even Calculator | in how much time a CNG car can cover it's extra cost than petrol car?

04 Aug 2026 42 views 0 likes Answered Calculator
Expert Answer

Calculate When a CNG Car Will Recover Its Higher Purchase Cost

Wondering whether buying the CNG variant is worth the extra price? This calculator helps you find out how many kilometers, months, or years it will take for the fuel savings from the CNG variant to recover its higher purchase cost.

Simply enter the purchase prices, fuel prices, mileage, and your daily driving distance to see the result instantly.

Solution Formula:

Price Difference

= CNG Vehicle Price − Petrol Vehicle Price


Petrol Cost per km

= Petrol Price ÷ Petrol Mileage


CNG Cost per km

= CNG Price ÷ CNG Mileage


Savings per km

= Petrol Cost per km − CNG Cost per km


Break-even Distance

= Price Difference ÷ Savings per km


Monthly Running

= Daily Running × 30


Months to Recover

= Break-even Distance ÷ Monthly Running

Interactive Calculator

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