Electric Vehicle Charging Cost Calculator

Free EV charging cost calculator. Enter your battery size, electricity rate, and charging level to find the total cost and time to charge your electric vehicle.

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Full Charge Cost hesaplanacak
Cost per 100km hesaplanacak
Range per Full Charge hesaplanacak
vs Petrol (at $1.80/L, 8L/100km) hesaplanacak

Understanding EV Charging

Electric vehicle charging costs depend on battery capacity (kWh), charging efficiency, electricity price, and charging level. Home charging is typically far cheaper than public DC fast charging.

Charging Cost Formula

Cost = Battery Capacity (kWh) x Electricity Rate (per kWh) / Charging Efficiency

Typical charging efficiency: 85–90% (some energy is lost as heat during charging)

Charging Levels Comparison

LevelPowerRange Added/HourFull Charge Time
Level 1 (120V home)1.4 kW8–10 km30–40 hours
Level 2 (240V home)7–11 kW40–65 km6–10 hours
DC Fast Charge50–350 kW300+ km20–45 minutes

Cost Comparison: EV vs Petrol

Assuming electricity at $0.20/kWh and petrol at $1.80/L:

  • EV consuming 18 kWh/100 km: $3.60 per 100 km
  • Petrol car at 8 L/100 km: $14.40 per 100 km
  • Annual savings (15,000 km): approximately $1,620

Tips to Reduce Charging Costs

  • Charge at off-peak hours (night rates can be 50–60% cheaper)
  • Install rooftop solar to effectively charge for free
  • Use public free charging where available
  • Avoid frequent DC fast charging — it degrades battery health over time

How to Use This Calculator

Using our calculator is simple: enter the required values into the input fields and click the calculate button. Results are displayed instantly on screen. You can adjust the values and recalculate to compare different scenarios and find the best option for your situation.

Frequently Asked Questions

QuestionAnswer
How accurate are the results?We use standard formulas and up-to-date 2025 rates. Individual circumstances may vary slightly.
Is this calculator free?Yes, completely free and no registration required.
What should I do for exact figures?For precise information, consult a relevant professional or official authority.
Does it work on mobile devices?Yes, it works seamlessly on all devices and screen sizes.

Important Notes

This calculator is provided for informational purposes only. For legal, financial, or medical decisions, always seek advice from qualified professionals. Calculation results do not constitute official documents. Legislative changes may affect results; please visit the relevant official website for the most up-to-date information. Our calculators are regularly updated to reflect current regulations and rates.

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Frequently Asked Questions

A 75 kWh battery at $0.15/kWh costs $11.25 for a full charge. At 18 kWh/100km, that equates to about $2.70 per 100km.
A standard 7.4 kW home charger takes about 10 hours for a 75 kWh battery from empty. A fast 22 kW charger takes about 3.5 hours.
In most countries, yes. At typical electricity and fuel prices, EV costs are 30-70% less per km than petrol or diesel equivalents.