The 40Ft charger has 37feet from the car plug (J1772) to the charger box, and from the charger box to the wall outlet (L14-30) is 3Ft so total 40ft end to end. We also have a 50ft version which is 48+3ft. If there is a car parked on the driveway it might be useful to have extra-long to be sorry later on, (FYI: some customers later on request for an upgrade after their initial purchase)