How to Use the Calculator
- Enter the Energy Consumption in kWh. This is the amount of energy your Tesla will use during charging. You can find this value on your Tesla's energy display or in your charging history.
- Select the Charging Speed in kW. This depends on the charging equipment you're using (Level 1 at home, Level 2 at public chargers, or DC Fast Chargers).
- Enter the Electricity Rate in $/kWh. This is your home or local electricity cost per kilowatt-hour. You can find this on your electricity bill.
- Select the Time of Use category that best matches when you're charging (Off-Peak, Peak, or High Peak).
- Click the Calculate button to see the estimated cost, charging time, and energy efficiency.
Understanding the Results
- Estimated Charging Cost: The total cost of charging based on your inputs.
- Charging Time (Approximate): The estimated time it will take to charge your vehicle fully.
- Energy per Dollar: How many kilowatt-hours you get per dollar spent, helping you compare different charging options.
Principles of the Calculator
The calculator uses the formula:
Cost = Energy Consumption (kWh) × Electricity Rate ($/kWh) × Time of Use Factor
The charging time is calculated as:
Charging Time (minutes) = Energy Consumption (kWh) ÷ Charging Speed (kW) × 60