EV Charging Time Calculator
Estimate EV charging time from battery and charger power.
Result
Formula
Calculation logicFrequently asked questions
How long to charge an EV?
Divide battery kWh needed by charger kW times efficiency near 90 percent. A 60 kWh fill on 7.7 kW takes about 8.5 hours.
Why does the last 20 percent take longer?
Batteries taper current above 80 percent to protect cells. Road-trip charging to 80 percent is fastest.
What charger power do I have?
Level 1 is 1.4 kW, Level 2 home is 7 to 11 kW, DC fast is 50 to 350 kW.
Does cold weather slow charging?
Yes. Precondition while plugged in to recover 20 to 30 percent of winter charging speed.
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