Quick Panel Size Calculator

This is a quick electrical load size calculator that can tell you how big of an EVSE (car charger) you can add to your existing electrical service. It is meant for smaller electrical services. If you have a 200A or larger panel, just assume you can add a 60A circuit for full charging using a Tesla Wall Connector. If you need to charge a second EV, just use the Wall Connector's load sharing feature.

Just select the major appliances you have. If you have gas appliances (eg. a gas furnace or water heater), then don't select anything in that area.