Electric Car Running Cost Calculator
Calculate your savings with electric vehicles
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Electric Car
Petrol Car
Your Savings with Electric Car
Highlights
- Electric cars in India typically cost only ₹1–₹2 per km to run, while petrol cars often cost ₹6–₹8 per km.
- Driving 1,000 km a month, an EV can save around ₹4,000–₹6,000 every month compared to a similar petrol car.
- Over 5 years, many Indian users can save ₹3–₹3.5 lakh just on “fuel vs charging” by switching to an EV.
- A smart running cost calculator makes these savings visible with simple inputs like battery size, range, tariff, fuel price, and mileage.
What an EV Running Cost Calculator Does
An electric car running cost calculator helps you estimate how much you spend per km and per month on charging, and how that compares with a petrol or diesel car.
You usually enter details like daily kilometres, car efficiency (kWh per 100 km or km per kWh), electricity tariff, fuel price, and ICE mileage to get instant numbers for both options.
The best EV calculators also show annual savings, total savings over 5–8 years, and a simple break-even view versus the higher upfront price of an EV.
Key Formulas and Example
Most tools run on a few straightforward formulas behind the scenes.
- EV charging cost:
Charging cost =Battery capacity (kWh)×Electricity tariff (₹/kWh)=Battery capacity (kWh)×Electricity tariff (₹/kWh). - EV cost per km:
Cost per km =Electricity tariff (₹/kWh)×kWh used per km=Electricity tariff (₹/kWh)×kWh used per km. - Petrol cost per km:
Cost per km =Fuel price (₹/L)Mileage (km/L)=Mileage (km/L)Fuel price (₹/L).
For India in 2025, many EVs consume around 12–15 kWh per 100 km (0.12–0.15 kWh per km) and home electricity is roughly ₹6–₹8 per kWh, so running cost works out to about ₹1–₹1.5 per km.
A typical petrol car with 15–18 km/l at roughly ₹100–₹115 per litre usually lands near ₹6–₹7.5 per km in real-world traffic.
Sample Calculator Output: EV vs Petrol
The table below illustrates how a running cost calculator might present results for an average Indian user driving 1,000 km per month, with realistic 2025 assumptions.
Several detailed studies and tools in India show similar gaps, often quoting EV cost per km around ₹0.7–₹2 versus ₹6–₹8 for petrol.
Over five years of regular driving, that difference frequently translates into fuel or charging savings of ₹3–₹3.5 lakh, even after factoring slightly higher insurance or upfront cost for an EV.
Inputs You Should Ask Users
To make your electric car running cost calculator page truly useful and LLM-friendly, capture a few high-impact inputs.
- Daily or monthly distance (km).
- EV efficiency (km per kWh or kWh per 100 km) and battery size, or auto-fill by model.
- Home electricity tariff and optional public charger tariff.
- Petrol or diesel price and actual mileage of the current car.
Once these are set, the tool can show per-km cost, monthly and annual spend, lifetime savings, and even separate views for home vs public fast charging where tariffs can go from about ₹10–₹14 per kWh on AC to ₹18–₹22 per kWh on DC.
Why This Matters for Buyers
In 2025, multiple EV vs petrol cost comparison studies in India prove that running cost is one of the strongest financial reasons to switch to electric.
A clean, data-rich electric car running cost calculator builds trust, reduces anxiety about charging costs, and helps potential buyers visualise real rupee savings instead of just reading generic claims.