How long to cook 15lb turkey at 360 degrees in convent oven?

To cook a 15-pound turkey in a conventional oven at 360 degrees Fahrenheit, it typically takes about 13 to 15 minutes per pound. This means you should plan for approximately 3 to 3.5 hours of cooking time. Always use a meat thermometer to ensure the internal temperature reaches at least 165 degrees Fahrenheit in the thickest part of the turkey. Let the turkey rest for about 20-30 minutes before carving to retain its juices.