EV Charging Calculator

This calculator determines how long it takes to charge your electric vehicle based on battery size, current charge level, target level, and charger power output. It also calculates the electricity cost based on your local rates.

1. 1

   Enter Battery Capacity

   Input your EV's total battery capacity in kWh

2. 2

   Set Charge Levels

   Enter current and target battery percentages

3. 3

   Select Charger Type

   Choose Level 1, Level 2, or DC Fast Charging power level

4. 4

   Enter Electricity Rate

   Input your cost per kWh for cost calculation

• 1

  Level 2 home charging (240V) is the best balance of speed and cost for most owners

• 2

  Charge to 80% daily - charging slows significantly above 80% to protect battery

• 3

  Off-peak electricity rates can reduce charging costs by 30-50%

• 4

  DC fast charging is convenient but costs 2-4x more than home charging

• 5

  Factor in 10-15% efficiency loss when calculating total electricity needed

• Expecting linear charging times - speed drops significantly above 80%

• Not accounting for charging efficiency losses in cost calculations

• Comparing Level 2 times to DC fast charging without noting the cost difference

• Overusing DC fast charging which can accelerate battery degradation