Turkey weight needed: The total pounds (or kilograms) of whole turkey to buy for your guest count. This accounts for bone weight, shrinkage during cooking, and optional leftovers.
Oven temperature: The recommended roasting temperature — 325°F (160°C) per USDA guidelines for safe, even cooking of a whole turkey.
Total cook time: A range in hours and minutes based on weight and whether the bird is stuffed. Stuffed turkeys take longer because heat must penetrate the stuffing to reach 165°F internally.
Resting time: After roasting, let the turkey rest 20–30 minutes before carving. This allows juices to redistribute, resulting in moister meat.
How This Calculator Works
You enter the number of guests, whether you want leftovers, and whether the turkey will be stuffed. The tool uses 1.25 lbs per person (just enough) or 1.5 lbs per person (with leftovers), multiplied by guest count. Cook time is calculated at 13–15 minutes per pound unstuffed or 15–17 minutes per pound stuffed, both at 325°F.
Quick Questions
How many pounds of turkey per person?
The standard rule is 1.25 pounds per person for just enough, or 1.5 pounds per person if you want leftovers. For big eaters or if turkey is the only main dish, lean toward the higher amount.
Should I buy a stuffed or unstuffed turkey?
Unstuffed turkeys cook faster and more evenly. If you stuff the bird, the stuffing must reach 165°F internally, which adds cook time and can dry out the breast. Many chefs recommend cooking stuffing separately.
What internal temperature means the turkey is done?
The USDA recommends an internal temperature of 165°F (74°C) measured in the thickest part of the thigh, away from bone. If stuffed, the center of the stuffing must also reach 165°F.
What if I need more than 20 pounds of turkey?
Turkeys larger than about 20 pounds can be difficult to cook evenly. Consider roasting two smaller birds instead — they cook faster, give you more drumsticks, and are easier to handle.