How long do you cook a 12 pound turkey in a roaster?

Roasting times for whole turkeys

Preheat your oven to 160°C (325°F) and use these cooking times to prepare roast turkey that's moist, tender and delicious 10 to 12 lb Un Stuffed Turkey 3 - 3 ¼ hrs 10 to 12 lb Stuffed Turkey 3 ½ - 3 ¾ hrs Turkey is fully cooked and safe to eat when the meat thermometer reads 77°C or 170°F for an un-stuffed turkey and 82°C or 180°F for a stuffed turkey.