How long should you cook a whole turkey in the oven?

It typically takes 3.75 hours to roast a 14-pound turkey at 325 degrees F. The time it takes to cook a turkey in the oven depends on the size of the turkey, the oven's temperature, the temperature of the turkey when it enters the oven. Altitude also affects cook time.

If the bird is stuffed, the cook time increases by 15 minutes. Cooking the same 14-pound turkey at 425 degrees F takes about 112 minutes, while roasting it in a convection oven at 325 degrees F takes 2 hours. A probe thermometer can help determine when the turkey is done.