How this level 1 vs level 2 ev charging calculator works
Required battery energy is divided by effective charging power for each level to compare elapsed charging time.
How to use it
- Energy to add to battery. Enter the value in kWh.
- Level 1 charging power. Enter the value in kW.
- Level 2 charging power. Enter the value in kW.
- Charging efficiency. Enter the value in %.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
The vehicle onboard charger and circuit capacity can limit actual Level 2 power below the EVSE rating. Use the lower of the vehicle AC charging limit and EVSE output for Level 2 power.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.