Electric Vehicle Charging Time Calculator

Calculate how long it will take to charge your electric vehicle using different charging methods.

Reviewed August 29, 2026 · Calculation methodology · Inputs stay in your browser

Battery Capacity (kWh) Enter your EV's battery capacity (e.g., 75 for Tesla Model 3 Long Range).

Current Charge Level (%) Enter the current battery charge percentage.

Target Charge Level (%) Enter the desired battery charge percentage (typically 80% for optimal battery health).

Charger Type Select the type of charger you're using or select custom to specify power.

Charging Power (kW) Enter the power rating of your charger in kilowatts.

Vehicle's Onboard Charger Limit (kW) Maximum AC charging power your vehicle can accept (typically 7.7-11 kW).

Charging Efficiency (%) Charging efficiency (typically 85-90% for AC, 90-95% for DC).

Vehicle Efficiency (Optional) Enter your vehicle's efficiency to calculate range added.

EV Charging Speed Tips

Level 1 charging (standard wall outlet) adds about 4-5 miles of range per hour.
Level 2 charging (240V) typically adds 25-40 miles of range per hour.
DC Fast Charging can add 150-1000 miles of range per hour depending on the charger and vehicle.
Charging speed slows down significantly above 80% state of charge, especially with DC fast charging.
Your vehicle's onboard charger limits the maximum AC charging speed regardless of what the EVSE can provide.
Cold temperatures can significantly reduce charging speeds, especially for DC fast charging.
Some EVs reduce charging speed after multiple rapid charging sessions to protect the battery.