How much energy does a car use in a day?

The energy a car uses in a day varies widely based on factors such as driving habits, fuel type, and vehicle efficiency. On average, a gasoline car might consume about 1 to 3 gallons of fuel per day, translating to roughly 30 to 100 megajoules of energy. Electric vehicles, depending on their efficiency and the distance driven, may use between 15 to 30 kilowatt-hours (kWh) of electricity daily. Ultimately, the specific energy consumption will depend on individual driving patterns and vehicle specifications.