How Long Do You Cook A 12 Lb Turkey?
A 12 lb turkey should be cooked for approximately 3-3.5 hours at a temperature of 325°F (162°C) in a conventional oven. It is important to check the internal temperature of the turkey with a meat thermometer to ensure it has reached a safe temperature of 165°F (74°C) in the thickest part of the meat before serving.