Free Tool
EV Charging Cost Calculator
Find out what charging actually costs you — per km, per full charge and per month. Pick your EV, your city's electricity tariff and how much you charge in public, and see the real number including the charging losses most calculators quietly leave out.
Your setup
Compare against petrol
Monthly charging cost
₹1,721
for 1,200 km · ₹1.43/km
Full charge at home
₹409
0→100%, 45 kWh
One DC session
₹632
20→80%, adds ~225 km
Versus a petrol car
≈ ₹63,344 a year
Cost per km by charging source
Figures include charging losses — roughly 12% on AC and 6% on DC. That energy is billed to you but never reaches the battery, which is why most online calculators understate the real cost.
What actually determines your charging cost
Charging cost comes down to three numbers: the price you pay per unit of electricity, how many units your car needs to cover a kilometre, and how much energy is lost between the wall and the battery. Get those three right and everything else — monthly bills, savings against petrol, the payback period on the car itself — follows arithmetically.
The first number varies enormously. A domestic connection in Lucknow bills around ₹7 a unit; a Mumbai household in a high slab can pay ₹11.50 or more. A public DC fast charger charges ₹18–26 per kWh — two to three times the domestic rate. The same car can therefore cost anywhere between ₹1 and ₹4 per km to run depending purely on where you plug it in.
Home charging: the number that matters most
Roughly 80–90% of EV charging in India happens at home or at the office, and that is where the economics are won. Indian domestic tariffs are slabbed, which means the units your EV consumes are billed at your highest slab rate, not your average. If your household already crosses 400 units a month, every unit your car draws is priced at the top of the ladder — a detail that surprises a lot of new owners when the first bill arrives.
This is exactly what a separate EV meter is designed to fix. Several state regulators have notified dedicated EV-charging tariffs — Delhi at roughly ₹4.50 a unit, Karnataka and Telangana in the ₹5–6 range — that sit well below the top domestic slab and are billed independently of household consumption. Getting one involves an application to your DISCOM, a separate meter and usually a one-time cost of a few thousand rupees, but for anyone driving more than about 1,000 km a month it typically pays for itself within a year.
Public charging: convenience has a price
Public tariffs in India have settled into fairly predictable bands. Public AC points sit around ₹12–15 per kWh, 25–30 kW DC chargers around ₹18–20, the common 50–60 kW units around ₹20–24, and 120 kW-plus ultra-fast hubs at ₹24–28. Operators including Tata Power, Statiq, Jio-bp, ChargeZone and Ather Grid all fall within this range, with occasional variation by city and by whether the site is on a commercial or highway connection.
The practical consequence is that your charging mix matters more than your choice of car. An owner who charges 95% at home runs at roughly ₹1.20 per km. The same car, charged entirely on 50 kW DC, costs about ₹3.20 per km — still below petrol, but no longer the transformative saving that sold the car. The slider above exists precisely so you can see where your own mix lands.
The charging losses nobody mentions
Your electricity meter measures what enters the charger, not what reaches the battery. Between the two sits the onboard AC-DC converter, the cable, and the battery's own internal resistance — all of which shed energy as heat. On AC charging the round-trip loss is typically 10–15%; on DC, where the conversion happens in the charger rather than the car, it is closer to 5–8%.
In practice this means a 40 kWh battery draws about 45 units from your meter for a full charge, not 40. It is a small effect per session and a substantial one per year — roughly ₹4,000–5,000 for a typical owner. The calculator above accounts for it, which is why its figures run slightly higher than the back-of-envelope battery size × tariff sum you will find elsewhere.
Cutting your charging bill
- Apply for an EV meter if your state offers one. It is the single largest lever available — often a 40–45% reduction in your per-unit rate.
- Charge overnight. Where time-of-day tariffs exist, off-peak rates are meaningfully cheaper, and cooler ambient temperatures mean marginally lower losses.
- Use a 7.4 kW wall box rather than a 3.3 kW socket. Faster charging spends less time running the car's auxiliary systems, so a slightly higher share of the energy reaches the battery.
- Treat DC as a top-up, not a routine. Reserve fast charging for journeys, not for daily convenience — it is both costlier per unit and marginally harder on the pack.
- Pre-cool while plugged in. Cooling the cabin on grid power rather than battery power costs you domestic-rate electricity instead of range.
- Consider rooftop solar if you own the roof. A 3 kW array covers the typical EV owner's consumption and drops the marginal cost of charging close to zero after payback.
Frequently asked questions
How much does it cost to fully charge an electric car in India?
For a typical 40 kWh electric car charged at home on a domestic tariff of around ₹8 per unit, a full 0–100% charge costs roughly ₹360–400 once charging losses are counted. A larger 60 kWh car costs about ₹540–600. On a public DC fast charger at ₹22 per kWh the same full charge costs closer to ₹950–1,400, which is why nearly every EV owner does the bulk of their charging at home and uses public chargers only for top-ups on long drives.
What is the cost per km of running an electric car in India?
Charging at home, most electric cars in India cost between ₹1.00 and ₹1.60 per km. Charging exclusively on public DC fast chargers pushes that to roughly ₹2.80–₹4.00 per km. For comparison, a petrol car doing 18 km/l at ₹105 a litre costs about ₹5.80 per km. So home charging is typically four to five times cheaper than petrol, while public fast charging is still cheaper but the advantage narrows considerably.
Why is public charging so much more expensive than home charging?
A public charge point operator has to recover the cost of the hardware (a 60 kW DC charger costs several lakh rupees), a commercial electricity connection which is billed at a higher rate than domestic supply, site rental, network connectivity, maintenance and payment-gateway fees. Commercial EV-charging tariffs from DISCOMs are also higher than residential slabs. The ₹18–26 per kWh you pay at a public charger covers all of that, not just the electricity.
Do charging losses really matter?
Yes, and they are the most commonly ignored part of EV running-cost maths. Your electricity meter measures what goes into the charger, but some of that energy is lost as heat in the cable, the onboard AC charger and the battery itself. AC charging typically loses about 10–15% and DC charging about 5–8%. So a 40 kWh battery actually draws roughly 45 units from your meter on a full AC charge, not 40. Any calculator that ignores this understates your real cost by around a tenth.
Is there a separate electricity tariff for EV charging in India?
Several states offer one. Delhi, Maharashtra, Karnataka and Telangana among others have notified separate EV-charging tariffs that are meaningfully lower than the top domestic slab, and some also offer time-of-day rates that make overnight charging cheaper still. The catch is that most of these require a dedicated, separately metered EV connection — you generally cannot get the EV rate simply by plugging into an existing household socket. Check with your local DISCOM before assuming you qualify.
Does charging cost more in summer?
Slightly, though the effect is indirect. Heat does not change the price per unit, but it does reduce how far each unit takes you, because the air-conditioning load and the battery's own thermal management both consume energy. In peak Indian summer you may see your cost per km rise by 10–20% simply because your real-world efficiency drops. Charging overnight, when ambient temperatures are lower, is marginally more efficient as well as often cheaper on a time-of-day tariff.
Is it cheaper to charge to 100% or to 80%?
The cost per unit is identical, so a full charge simply costs more in absolute terms because it puts more energy in. The real distinction is time and battery health rather than money: on DC fast charging the last 20% is disproportionately slow because the battery management system tapers the power, and habitually charging to 100% on fast chargers accelerates degradation slightly. For daily use, charging to 80–90% at home is the common recommendation, with a full charge before a long trip.
How much does it cost to charge an electric scooter?
Electric two-wheelers are dramatically cheaper to run. A typical 3 kWh scooter battery costs about ₹27 to fill at ₹8 per unit including losses, and that gives roughly 85–100 km of real-world range — around ₹0.30 per km. A 110cc petrol scooter doing 50 km/l at ₹105 costs about ₹2.10 per km. That roughly seven-fold gap is the single strongest financial argument for electric two-wheelers in India, and it is why the payback period on an electric scooter is usually far shorter than on an electric car.
Tools to help you decide
Tariff figures are indicative 2026 residential and commercial rates and vary by slab, city and DISCOM. Use the custom-rate field with the figure from your own electricity bill for an accurate result. This tool is for estimation and is not a quotation.