Estimate how long it takes to charge an electric car to your target.
The energy needed is the capacity times the percent of charge gained, adjusted for charging losses. Dividing by the charger's power gives hours to charge. A 7 kW home charger takes many hours for a big pack, while a 150 kW fast charger tops the same battery up in minutes, so charger power drives the wait.
EV Charging Time
Time = energy added / charger power
Time = energy added / charger power The energy needed is the capacity times the percent of charge gained, adjusted for charging losses. Dividing by the charger's power gives hours to charge.
A 7 kW home charger takes many hours for a big pack, while a 150 kW fast charger tops the same battery up in minutes, so charger power drives the wait.
This calculator takes 5 inputs: Battery size, Current charge, Target charge, Charger power, Charging efficiency. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.