Charging time calculator: When will your EV be fully charged?
Enter the usable capacity of the battery, the current battery percentage and the percentage you want to reach. The calculator finds the energy needed and estimates the time based on the charging power the car can actually receive.
Worked example
- Usable capacity: 60 kWh
- Battery now: 20 %
- Battery target: 80 %
- Charging power: 11 kW
- Efficiency: 90 %
36 kWh into the battery
About 3 h 38 min
Constant average power. The car may reduce the power toward the end; the charging curve and battery temperature are not included.
Charging power is limited in several places
A powerful charging station does not automatically mean fast charging. The car, the charger and the electrical installation can each set a limit. With AC charging, losses are also included if the stated power is measured before the battery.
With DC charging, the power changes during the session. The temperature and state of charge of the battery matter. A time estimate based on the maximum advertised power alone therefore easily becomes too optimistic.
How to find a useful time estimate
Use the usable battery capacity
The total technical capacity of the battery is not always the amount you can use. Use the stated usable capacity if you have it. Also check the car's current charging limit.
Example from 20 to 80 percent
A usable battery of 60 kWh must receive 36 kWh to go from 20 to 80 percent. If the battery receives a constant 9 kW, it takes four hours. This is a simplified example with constant power.
The calculated time is an estimate. The car can lower the power or use energy for heating. If the car must be ready at a specific time, you should allow some extra time.