EV Charging Cost Calculator
See what an electric car really costs to run. Enter your monthly distance, the EV efficiency and charging rates — the tool compares home charging, public fast charging and a petrol car, with monthly, per-km and yearly numbers.
Your driving and EV
Charging rates
Petrol car comparison (optional)
Monthly blended cost
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Cost per km
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Yearly EV cost
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Yearly saving vs petrol
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Details
How to use
- Enter your monthly distance and the EV efficiency in km per kWh.
- Enter your home electricity rate, the public fast-charger rate, and what share of charging happens at home.
- Optionally add a petrol price and fuel economy to compare against a petrol car.
Note: Monthly EV cost = (Monthly distance / Efficiency) x Blended rate. Blended rate = Home rate x Home share + Public rate x Public share. Rates vary by DISCO slab and time of day — this is an estimate.
Tips
- Charging at home as much as possible keeps the per-km cost lowest.
- Off-peak electricity rates can cut the home charging cost further.
- Real efficiency drops on highways and with heavy air-conditioning use — use a realistic number.