Electric vehicle efficiency refers to how effectively an electric vehicle (EV) converts stored energy from its battery into movement. This efficiency is often measured in miles per kilowatt-hour (miles/kWh), indicating how far an EV can travel on a specific amount of energy. Higher efficiency means longer driving ranges and reduced energy costs. Factors influencing EV efficiency include the vehicle's weight, aerodynamics, and the type of electric motor used. Additionally, driving habits and environmental conditions, such as temperature and terrain, can impact overall performance. Understanding these elements helps consumers make informed choices about their EVs.