How Long Does It Take to Charge an EV on a 30 A Level 2 charger?
6 h 57 min
Adding 45 kWh (20% to 80% of a 75 kWh battery) on a 30 A Level 2 charger takes about 6 h 57 min, adding about 150 miles for a car that uses 30 kWh per 100 miles, or about 22 mi of range per hour.
Time to charge from 20% to 80% on a 30 A Level 2 charger, by battery size
| Battery | Charging time | Energy added |
|---|---|---|
| 40 kWh | 3 h 42 min | 24 kWh |
| 60 kWh | 5 h 33 min | 36 kWh |
| 75 kWh | 6 h 57 min | 45 kWh |
| 100 kWh | 9 h 16 min | 60 kWh |
| 130 kWh | 12 h 2 min | 78 kWh |
Adjust the numbers
The calculator below is pre-filled with the numbers above. Change any value to match your project.
- Energy added
- 45 kWh
- Range added
- about 150 miles
- Miles per hour of charging
- about 22 mi
What you will need
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How it is calculated
Energy needed = battery capacity × (target % − starting %). Charging time = energy needed ÷ charger power.
For Level 1 and Level 2 (AC) charging, about 10% of the power is lost in the car’s onboard charger, so the calculator uses 90% of the charger’s power. A Level 2 charger on a 40 A circuit can deliver 32 A, or about 7.7 kW at 240 V; the options shown are common charger ratings.
Open the full ev charging time calculator for other shapes, a worked example and FAQs.