How much does it cost to fully charge an electric car at home in India?

For a typical 30 kWh EV, a full home charge needs about 33 kWh from the socket after charging losses. At ₹8 per unit that is roughly ₹264 for a full charge, giving around 250–300 km of range. That works out to about ₹1.0–1.2 per km, compared with ₹6–8 per km for a petrol car.

Is it cheaper to charge an EV at home or at a public station?

Home charging is much cheaper, at your domestic tariff of about ₹6–10 per unit. Public AC chargers cost roughly ₹12–18 per unit and DC fast chargers ₹18–24 per unit because of demand charges and operator margins. Charging at home overnight is the most economical option.

How much can I save per month by switching to an EV?

If you drive 1,000 km a month, a petrol car at ₹5.8/km costs about ₹5,800, while an EV at ₹1.1/km costs about ₹1,100 — a saving of roughly ₹4,700 a month, or ₹56,000 a year. The more you drive, the faster the EV's higher purchase price pays back.

Why is the charging cost higher than battery size times tariff?

Charging is not 100% efficient. AC home charging loses about 10–15% as heat in the charger and battery, so to put 30 kWh into the battery you draw about 33–35 kWh from the socket. This calculator includes a charging efficiency factor so the cost matches your actual electricity bill.

🔌 Quick: pick your vehicle

then set tariff & distance below ↓

🔌 EV Running Cost

EV Charging Cost Calculator (India)

Q: What is the cost per km of an electric vehicle?

An electric car typically costs ₹1.0–1.5 per km when charged at home, and an electric scooter ₹0.20–0.40 per km. A petrol car at 18 km/l and ₹105/l costs about ₹5.8 per km, and a petrol scooter about ₹2.5 per km. EVs usually cost a fifth to a quarter as much per km to run.

Find your cost to charge, cost per km, and how much you save every month versus petrol.

🔌 EVs run on roughly a fifth of the fuel cost. Where a petrol car costs ₹6–8 per km, an EV charged at home costs about ₹1. Over a year of normal driving that gap is often ₹50,000+.

Battery Capacity (kWh)

Scooter ~2–4, car ~25–60

Efficiency (km per kWh)

Car ~6–8, scooter ~35–45

Charge From (%)

Charge To (%)

Charging Tariff (₹ per unit)

Charging Efficiency (%)

AC charging loses ~10–15%

Distance Driven (km/month)

Petrol Price (₹/litre)

Petrol Mileage (km/litre)

For the equivalent petrol vehicle

How This Calculator Works

It works out the energy you actually draw from the socket (including charging losses), multiplies by your tariff, then compares the resulting cost per km against an equivalent petrol vehicle.

Home vs public: use the tariff presets — home charging is cheapest, DC fast charging the most expensive per unit.

💰 Related Calculators

🧾 Electricity Bill Calculator ☀️ Solar Rooftop Subsidy ❄️ AC Electricity Cost ⚡ Electricity Cost (kWh to ₹)

💡 Charge Cheaper

→ Charge overnight at your home tariff
→ Pair with rooftop solar to cut cost to near zero
→ Keep charge between 20–80% for battery health
→ Use DC fast charging only on long trips

How EV Charging Cost Is Calculated

The cost to charge an EV is the energy you pull from the socket multiplied by your tariff. Because charging is not perfectly efficient, you draw a little more from the grid than ends up in the battery. Cost per km then comes from how far that energy takes you.

Energy into Battery (kWh) = Battery × (To% − From%) ÷ 100 Energy from Socket (kWh) = Energy into Battery ÷ Charging Efficiency Charging Cost (₹) = Energy from Socket × Tariff (₹/unit) Range Added (km) = Energy into Battery × km per kWh EV Cost per km (₹) = Charging Cost ÷ Range Added

Worked Example — 30 kWh car, 20→100%

Battery: 30 kWh | 20→100% = 80% | Efficiency: 88% | 7 km/kWh | ₹8/unit

Into battery = 30 × 0.80 = 24 kWh
From socket = 24 ÷ 0.88 = 27.3 kWh → Cost = 27.3 × ₹8 = ₹218
Range added = 24 × 7 = 168 km → EV cost = ₹218 ÷ 168 = ₹1.30/km
Petrol (18 km/l, ₹105/l) = ₹5.83/km → you save ₹4.53/km

EV vs Petrol Running Cost Reference

Approximate, home charging at ₹8/unit. Petrol at ₹105/litre.

Vehicle	EV ₹/km	Petrol ₹/km	Saving / 1,000 km
Electric Scooter	₹0.25	₹2.50	~₹2,250
Small Electric Car	₹1.30	₹5.83	~₹4,530
Electric SUV	₹1.50	₹6.60	~₹5,100

* Approximate. Use the calculator above for your exact vehicle, tariff and distance.

Frequently Asked Questions

For a 30 kWh EV, a full charge needs about 33 kWh from the socket after losses. At ₹8/unit that is roughly ₹264 for 250–300 km of range — about ₹1.0–1.2 per km, versus ₹6–8 per km for petrol.

An electric car costs about ₹1.0–1.5 per km on home charging, and an electric scooter ₹0.20–0.40 per km. A petrol car at 18 km/l and ₹105/l costs about ₹5.8 per km. EVs typically cost a fifth to a quarter as much per km.

Home is much cheaper at ₹6–10 per unit. Public AC chargers cost ₹12–18 per unit and DC fast chargers ₹18–24 per unit due to demand charges and operator margins. Overnight home charging is the most economical.

Driving 1,000 km/month, a petrol car at ₹5.8/km costs ~₹5,800 while an EV at ₹1.1/km costs ~₹1,100 — saving about ₹4,700/month or ₹56,000/year. The more you drive, the faster the EV's higher price pays back.

Charging is not 100% efficient — AC home charging loses about 10–15% as heat, so putting 30 kWh into the battery draws ~33–35 kWh from the socket. This calculator includes a charging efficiency factor so the cost matches your real bill.

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