A refrigerator typically uses between 300 to 700 watts of electricity, depending on the unit's size, model, age, and efficiency. To determine how much power your specific refrigerator needs, check the small plate or label on the back or inside of the fridge, which should provide the wattage information. Remember that energy-efficient models or those with ENERGY STAR certification tend to consume less power, resulting in lower electricity costs and a reduced environmental impact.