⚡ EV Charging Cost Calculator
Updated March 2026 | State-wise rates
Calculate the exact cost to charge your electric vehicle at home or at a public charging station. Select your state for accurate electricity rates.
Your Charging Cost
Frequently Asked Questions
How is EV charging cost calculated?
Charging cost = Battery capacity (kWh) × Charge percentage × Electricity rate (₹/kWh). We add ~10% for charging losses.
Is home charging cheaper than public charging?
Yes, home charging costs ₹5-9/kWh (domestic rate) while public stations charge ₹15-30/kWh. Home charging is 2-4x cheaper.
How EV Charging Costs Work in India
Calculating the exact cost to charge an electric vehicle in India depends heavily on your location (state tariff) and where you charge (home vs. public). Because India enforces slab-based electricity billing, charging a large battery like the Tata Nexon EV Max (40.5 kWh) at home will push your monthly electricity consumption into a higher tier, usually costing between ₹6.5 to ₹8.5 per unit (kWh).
The Calculation Methodology
Our calculator uses the standard physics equation for EV charging:
For example, charging a 30.2 kWh battery from 20% to 100% requires 24.16 kWh. At a rate of ₹7.5/kWh, the cost is roughly ₹181. We actually add a 5-10% efficiency loss factor in advanced calculations because transferring AC power to a DC battery creates heat loss.
Public vs. Home Charging
While home charging (AC slow charging) costs around ₹7 to ₹9 per unit, public DC fast charging stations across Indian highways typically charge a premium—often between ₹18 to ₹24 per unit, plus GST. This makes public charging nearly 3x more expensive, though still cheaper than petrol.
Frequently Asked Questions
How much does it cost to charge a Tata Nexon EV fully?
A standard Tata Nexon EV (30.2 kWh) costs between ₹180 to ₹250 to fully charge at home, depending on your state's electricity slab. At a public fast charger, it easily costs over ₹600.
What is the per-km running cost of an EV in India?
For most popular 4-wheeler EVs in 2026, the running cost ranges from ₹0.80 to ₹1.20 per kilometer when charged at home. This is drastically lower than the ₹6 to ₹8 per kilometer cost of petrol cars.
Should I charge my EV to 100% every time?
No. For maintaining long-term battery health (especially LFP and NMC chemistries), experts recommend keeping the charge between 20% and 80% for daily city usage, charging to 100% only before long highway trips.