EV vs Petrol Savings Calculator

EV vs Petrol Savings Calculator: Compare Running Costs in India

An EV vs petrol savings calculator helps you compare the cost of charging an electric vehicle with the fuel expenses of a petrol or diesel car. By entering your driving distance, electricity tariff, fuel price, and vehicle efficiency, you can estimate potential savings on daily travel and monthly running costs.

For example, a petrol car delivering 15 km per litre costs approximately ₹6.67 per kilometre when petrol is priced at ₹100 per litre. An electric vehicle travelling 8.33 km per kWh costs approximately ₹0.96 per kilometre at an electricity rate of ₹8 per unit, before charging losses. Under these assumptions, the difference is about ₹5.33 per kilometre. These figures are illustrative, not guaranteed savings. Your actual costs depend on vehicle efficiency, driving conditions, electricity tariffs, charging methods and local fuel prices. Before purchasing an EV, also consider its purchase price, insurance, maintenance, financing and resale value.

How to Use the EV vs Petrol Savings Calculator

Neu Auto’s EV vs petrol savings calculator helps you estimate how different driving habits and energy prices affect your vehicle’s running costs.

Follow these steps to make a useful comparison:

1. Enter your driving distance: Provide your expected daily or monthly kilometres, according to the calculator’s available fields.
2. Add your EV details: Enter the requested battery capacity, driving range, or efficiency information.
3. Enter your charging cost: Use your applicable home electricity tariff or the rate charged by your public charging provider.
4. Add your petrol or diesel details: Enter the current fuel price and your conventional vehicle’s typical mileage.
5. Calculate your estimated costs: Compare the resulting electricity expenses, fuel expenses, and potential savings.

For more realistic results, use figures that reflect your usual driving rather than relying exclusively on advertised efficiency or range. If you regularly use both home and public charging, account for their different rates when calculating your average charging cost.

The result estimates running-cost differences. It does not automatically establish which vehicle will be cheaper to own over its entire lifetime.

How Does an EV vs Petrol Savings Calculator Work?

The calculator compares the cost of energy required to travel the same distance in two vehicles. For a petrol or diesel car, the calculation uses fuel price and mileage. For an EV, it uses electricity price and energy efficiency.

For example, if petrol costs ₹100 per litre and the vehicle returns 15 km per litre, its estimated fuel cost is ₹6.67 per kilometre. If electricity costs ₹8 per kWh and an EV achieves 6 km per kWh, its basic electricity cost is ₹1.33 per kilometre. Charging losses can increase the amount of electricity drawn from the grid. Make sure your calculation accounts for these losses if the efficiency figure represents energy used by the vehicle rather than electricity drawn from the supply.

Need a separate estimate for conventional fuel expenses? Use our Fuel Cost Calculator to calculate petrol, diesel or CNG costs based on your mileage and driving distance.

EV vs Petrol Running Cost Comparison

The following example shows how an EV vs petrol savings calculator can help you compare everyday energy expenses in India.

Assumptions:

• Petrol price: ₹100 per litre
• Petrol car mileage: 15 km per litre
• Electricity price: ₹8 per kWh
• EV efficiency: 6 km per kWh

All figures are illustrative estimates before EV charging losses, maintenance, insurance, taxes, financing and vehicle purchase costs. Values are rounded.

Under these assumptions, the EV’s electricity cost is approximately ₹5.33 lower per kilometre. At 15,000 km per year, this creates an estimated energy-cost difference of ₹80,000. However, energy-cost savings are not the same as total ownership savings. A higher EV purchase price, public fast-charging expenses or differences in insurance and resale value can affect the overall financial outcome.

Monthly Savings Using an EV vs Petrol Savings Calculator

Your potential savings depend partly on how much you drive. The table below uses the same example prices and efficiency figures to show how monthly travel distance affects energy expenses.

Figures are rounded and exclude charging losses and other ownership costs.

At 1,500 km per month, the example produces potential energy savings of ₹8,000 per month, or ₹96,000 over a year. This estimate assumes the same monthly distance, fuel price, electricity rate and efficiency throughout the year. Your actual savings could be lower or higher. Fuel prices change, electricity tariffs vary by location and household category, and public charging may cost more than home charging. Use your latest fuel price and electricity tariff for a more relevant estimate.

EV vs Petrol Cost per Kilometre

Cost per kilometre makes it easier to compare the energy expenses of an electric vehicle with those of a petrol or diesel car. A petrol or diesel car’s running cost depends on fuel price and real-world mileage. An EV’s electricity cost depends on the price per unit and how many kilometres it travels per kWh. Actual efficiency can change with traffic, speed, air-conditioning use, road conditions, temperature and passenger load. For EVs, the charging method and associated energy losses also matter.

For a fair comparison, use the same travel distance and realistic efficiency estimates for both vehicles. If you mainly drive in city traffic, use an appropriate city-driving estimate instead of relying only on a best-case highway figure.

Home Charging vs Public Charging Costs

Charging location can make a meaningful difference to an EV’s running cost. Home charging may be convenient for drivers with suitable parking and charging access, but the final cost depends on the applicable electricity tariff and charging losses. Public charging prices vary by provider, location, charger type, and fee structure. AC charging, DC fast charging and workplace charging may have different prices or additional fees. When using an EV vs petrol savings calculator, use the rate you actually pay rather than assuming all charging costs the same.

If you charge in multiple locations, estimate each charging method separately and calculate a reasonable weighted average based on how often you use it. You can also consult e-AMRIT’s public charging calculator for additional charging-cost estimates. Before estimating your charging budget, check available networks, connector compatibility and charging prices. Explore our guide to finding EV charging stations near you before planning longer journeys.

What Affects Your Actual EV Savings?

Several factors can change the difference between electricity and fuel expenses:

• Driving distance: People who travel more kilometres have more opportunity to benefit from a lower energy cost per kilometre.
• Vehicle efficiency: Real-world results can differ from advertised mileage or range.
• Energy prices: Local petrol, diesel and electricity rates directly affect running costs.
• Charging method: Home charging and public charging can have different tariffs.
• Charging losses: The electricity drawn from the grid can exceed the energy stored in the battery.
• Driving conditions: Traffic, speed, air-conditioning and road conditions influence efficiency.
• Purchase price: Any difference in upfront cost affects the overall financial comparison.
• Ownership expenses: Insurance, financing, servicing, tyres and resale value can change the total cost of ownership.

For a more complete buying decision, compare the expected costs of both vehicles over the same ownership period and driving distance. An EV may have lower energy expenses without necessarily being the least expensive option for every driver.

How Much Can You Save by Driving 50 km per Day?

Consider someone who drives 50 km daily, with petrol at ₹100 per litre, petrol mileage of 15 km per litre, electricity at ₹8 per unit, and EV efficiency of 6 km per kWh.

The estimated daily energy costs are:

• Petrol: 50 ÷ 15 × ₹100 = approximately ₹333.33.
• EV electricity: 50 ÷ 6 × ₹8 = approximately ₹66.67 before charging losses.
• Daily difference: approximately ₹266.67.
• Annual difference: approximately ₹97,333 over 365 days.

This example assumes the same efficiency and energy prices throughout the year, with 50 km of driving every day. If you drive fewer days, pay higher charging rates, or achieve different vehicle efficiency, the result will change. Enter your actual travel distance in the calculator to estimate costs that better reflect your routine.

When Can an EV Recover Its Higher Purchase Price?

Lower running costs do not necessarily make an electric car cheaper from the day of purchase. The additional upfront cost must be compared with the savings accumulated over time. For example, suppose an EV costs ₹2 lakh more than a comparable petrol car and saves ₹5 per kilometre in running expenses. The simple break-even distance would be:

₹2,00,000 ÷ ₹5 = 40,000 km.

At 15,000 km per year, that distance would take approximately 2.7 years to cover.

This is a hypothetical illustration, not a forecast for a specific vehicle. A more complete comparison should include differences in insurance, servicing, financing, taxes, applicable incentives, and resale value. The PRS Legislative Research briefing on electric vehicles discusses the broader factors affecting EV adoption and costs. For your own decision, use current vehicle prices and model-specific expense estimates. To understand how purchase price, insurance, maintenance, and resale value affect the overall decision, read our EV vs petrol car cost comparison in India.

EV Battery Life and Maintenance Costs

Battery life is an important consideration when buying an electric vehicle, but there is no single lifespan that applies to every model. Battery health depends on factors such as temperature, usage, charging patterns, battery chemistry, and the vehicle’s battery-management system. Check the manufacturer’s warranty for the exact model and battery variant. Review the coverage period, distance limits, exclusions and any conditions that apply to vehicle ownership.

EVs do not require engine oil changes and can have fewer routine drivetrain service requirements than petrol or diesel cars. However, tyres, brakes, suspension, air-conditioning and other components still require maintenance. Actual service costs vary by vehicle and usage. For a reliable ownership comparison, request the maintenance schedule, warranty terms and service estimates for the models you are considering rather than assuming a fixed annual saving.

Environmental Impact and EV Carbon Payback

Electric vehicles produce no tailpipe exhaust emissions while driving, but their overall environmental impact also depends on electricity generation, battery manufacturing and vehicle production.

An EV’s lifecycle emissions can vary according to battery size, manufacturing methods, electricity sources, vehicle efficiency and total distance driven. Petrol and diesel vehicles also produce emissions during fuel production and use. Research comparing electric and conventional vehicles in Indian conditions, including the role of electricity generation, is available in this study published in Sustainable Environment Research.

There is no universal carbon-payback period that applies to every EV in India. A credible estimate requires a lifecycle comparison using consistent assumptions for both vehicles. Any CO₂ savings shown by a calculator should explain whether the result includes only tailpipe emissions or also accounts for electricity-generation emissions.

Conclusion: Is an EV Cheaper to Run Than a Petrol Car?

An EV vs petrol savings calculator helps you compare estimated electricity and fuel expenses using your driving distance, local energy prices, and vehicle efficiency.

Under the example assumptions in this guide, an EV costs approximately ₹1.33 per kilometre in electricity before charging losses, compared with ₹6.67 per kilometre for a petrol car. At 1,500 km per month, the estimated difference is ₹96,000 per year in energy costs. These figures are illustrative and do not guarantee the savings you will achieve with a particular vehicle. Before making a purchase decision, consider the upfront price, charging access, battery warranty, insurance, maintenance, financing and expected resale value.

For drivers who cover regular distances and have convenient access to reasonably priced charging, an EV may provide meaningful running-cost savings. For those who drive relatively little or depend on more expensive public charging, the financial advantage may be smaller or take longer to recover. Use your own driving distance and local prices in the EV vs petrol savings calculator to produce a more relevant estimate for your budget.

Frequently Asked Questions

1. How does an EV vs petrol savings calculator work?

An EV vs petrol savings calculator estimates the energy cost of travelling a given distance in an electric vehicle and a petrol car. It uses inputs such as driving distance, petrol price, mileage, electricity tariff, and EV efficiency. The result estimates potential running-cost savings but does not automatically include all ownership expenses.

2. How much can I save by switching from petrol to an EV in India?

Savings depend on your vehicle efficiency, annual distance, fuel price, electricity tariff, and charging method. In our example, the petrol car costs ₹6.67 per kilometre and the EV costs ₹1.33 per kilometre before charging losses. At 15,000 km per year, the estimated difference is ₹80,000 in energy costs. Other ownership expenses must be considered separately.

3. Is an EV cheaper to run than a petrol car in India?

An EV can cost less to run on an energy basis, particularly when charged at home at a reasonable electricity rate. However, the difference depends on actual vehicle efficiency, charging prices, and local fuel rates. Compare total ownership costs before deciding which option is financially better for you.

4. How do I calculate EV savings if I drive 50 km per day?

Calculate the daily fuel cost and EV electricity cost for the same distance, then compare them. With petrol at ₹100 per litre and mileage of 15 km per litre, a petrol car costs approximately ₹333.33 for 50 km. An EV achieving 6 km per kWh at ₹8 per unit costs approximately ₹66.67 before charging losses. The estimated difference is ₹266.67 per day, or approximately ₹97,333 over 365 days under the same assumptions.

5. Does an EV savings calculator include the purchase price?

Not necessarily. A running-cost calculator generally compares electricity and fuel expenses based on the inputs available. Unless purchase price, insurance, financing, servicing, and resale value are explicitly included, the result should not be treated as a total cost-of-ownership comparison.

6. Is home charging cheaper than public EV charging?

Home charging can be less expensive in many situations, but the actual difference depends on your electricity tariff and the public charging provider’s prices. Check the rates you pay, account for charging losses, and calculate a separate cost for each charging method if you use both.

7. How much does it cost to charge a Tata Nexon EV for 100 km?

As an illustration, assume an efficiency of 6 km per kWh and electricity at ₹8 per unit. Covering 100 km requires approximately 16.7 kWh, equivalent to about ₹133 before charging losses. With an illustrative 10% loss of electricity during charging, the required grid electricity would be approximately 18.5 kWh, costing about ₹148. This is not a verified figure for every Nexon EV variant. Actual costs depend on the version, driving conditions, charging efficiency, and your electricity tariff. Check the official Tata Nexon EV website for vehicle information.