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Electric Vehicle Charging Calculator USA

Plan your charge: estimate your electric car's charging time, rate, and cost
Choose electric vehicle

Frequently Asked Questions

What is it?
Electric Vehicle Charging Calculator is a handy tool to estimate charging time and cost for your electric vehicle. It supports various charging scenarios, including home charging, workplace charging, and public stations. With options for both AC and DC charging, it's versatile and user-friendly.
How to use it?
  1. Select your electric vehicle model
  2. Choose your charging type: slow (AC) charging for home or work, or fast (DC) charging for public stations.
  3. If using AC charging, you can pick your outlet type (e.g., NEMA 5-20) or manually set voltage and amperage. If using DC charging, you can choose the station type (e.g., CCS DC 150 kW) or adjust the station's output manually.
  4. Set your initial and desired state of charge (e.g., 20-80%), and enter the price you pay per kWh.
  5. Optionally, indicate the battery temperature (charging is slower when the car’s battery is too cold or too hot).
  6. See your personalized charging time, cost, and other details.
What charging information does it provide?
Once you use the calculator, you'll see a breakdown of your charging session:
  • Charging duration (e.g., 3 hours 14 minutes)
  • Added range (e.g., +190 miles)
  • Average charging rate (e.g., 59 miles per hour)
  • Energy added to your battery (e.g., 58 kilowatt-hours)
  • Average charging power (e.g., 7.2 kilowatts)
  • Estimated charging cost (e.g., $15.65)
What charging options does it support?
The calculator is versatile and supports various charging options. Here's what it covers:
  • Slow (AC) charging: This is a convenient and cost-effective way to top up your battery at home or work while your car is parked for extended periods. You can choose from common outlet types (e.g., NEMA 5-20) or manually set voltage and amperage.
  • Fast (DC) charging: This is your go-to option for public stations when you need a quick charge to get back on the road. You can select from popular station types (e.g., CCS DC 150 kW) or manually adjust the station's output.
How accurate are the charging estimates?
The calculator offers close approximations, but real-world charging can differ slightly. Several factors can influence the final results, including:
  • Weather conditions: Extreme cold or heat can impact battery performance.
  • Driving behavior before charging: For optimal charging, the battery should be warmed up but not overheated.
  • Battery state of charge: Charging is slower when it is fully drained or almost fully charged.
  • Specific car model and battery health
  • Charging station performance (especially for DC fast chargers)
How to ensure optimal charging performance?
For the best charging performance, consider these tips:
  • Park in moderate temperatures: Avoid extreme cold or heat, as they can affect battery performance.
  • Start with a pre-warmed battery: If possible, use your car's pre-conditioning features to warm the battery before charging, especially in cold weather.
  • Maintain a moderate charge level: Regularly charging between 20% and 80% is ideal for battery health and efficiency.
  • Use high-quality charging equipment and cables: Reliable equipment ensures efficient and safe charging, minimizing potential performance issues.