EV Charging Time Calculator
Enter your EV's battery capacity, charger power, current and target charge levels, and typical charging efficiency to estimate total charging time.
About this calculator
Estimate how long it will take to charge your electric vehicle from your current battery level to your target level, based on charger power and vehicle efficiency losses.
Frequently Asked Questions
Why does charging efficiency matter?
Not all electricity drawn from the charger goes into the battery — some is lost as heat during AC-to-DC conversion and battery management, typically 85-95% efficient.
Does charging speed stay constant the whole time?
No, real-world charging (especially DC fast charging) slows down significantly above 80% state of charge. This calculator gives a linear average estimate.
How can I charge faster?
Use a higher-power charger, charge in cooler conditions, and avoid charging above 80% frequently since taper rates increase near full charge.