Thanksgiving Calculator

About the Thanksgiving Calculator

Planning Thanksgiving dinner is stressful enough without doing math. How big should the turkey be? How many pounds of potatoes? How many pies? This calculator handles the entire menu — turkey, sides, desserts, and drinks — for any number of guests.

The rule of thumb is 1–1.5 pounds of turkey per person (bone-in, uncooked). That accounts for bone weight and cooking shrinkage. For leftover lovers, go 1.5 lbs per person. For big-eater crowds, push to 1.75 lbs. The calculator adjusts for your leftovers preference.

Beyond the turkey, this calculator covers mashed potatoes, stuffing, cranberry sauce, gravy, dinner rolls, green beans, sweet potatoes, and pie. Enter your headcount and get a complete shopping list. It also includes a cooking timeline working backwards from your target dinner time — because the biggest Thanksgiving disaster isn't a dry turkey, it's having everything ready at different times.

When This Page Helps

Use this calculator when you need both the shopping quantities and the timing plan for a full holiday meal. It is most helpful when you are scaling dinner up or down, deciding how much leftovers to plan for, or coordinating turkey timing with sides and desserts.

How to Use the Inputs

1. Enter total guest count (adults and children)
2. Select leftovers preference (none, some, generous)
3. View turkey size recommendation
4. Check the complete sides and desserts shopping list
5. Use the cooking timeline to plan your day
6. Adjust individual items if needed

Example Calculation

Tips & Best Practices

• Dry brine the turkey for 24–48 hours before cooking — salt, thyme, sage, rubbed under and over the skin
• Take the turkey out of the fridge 1 hour before cooking to bring to room temperature
• Use a meat thermometer — the pop-up timers in turkeys are unreliable
• Let the turkey rest 30–45 minutes after cooking (it won't get cold, and juices redistribute)
• Make gravy from drippings while the turkey rests — that's the perfect 30-minute window
• Assign sides to guests: one person brings rolls, another brings pie — delegation is key

The Thanksgiving Timeline

Working backwards from a 4:00 PM dinner: 4 PM: carve and serve. 3:15 PM: turkey rests, make gravy, reheat sides. 11:00 AM: turkey in oven (for 15 lb bird). 10:00 AM: prep stuffing, start potatoes. 9:00 AM: preheat oven, prep green beans. Day before: dry brine turkey, make cranberry sauce, make pie.

Turkey Alternatives

Not everyone wants a whole turkey. Two 12 lb turkeys cook 30% faster than one 24 lb turkey. Turkey breast only works for smaller groups (plan 0.75 lb/person). Turducken serves approximately 15–20. A ham alongside a smaller turkey gives variety and relieves pressure on turkey timing.

Leftover Math

A proper Thanksgiving produces leftovers. Turkey sandwiches, turkey pot pie, turkey soup. Budget 0.25–0.5 extra lbs per person if you want sufficient leftovers. A 16 lb turkey for 12 people yields about 8 lbs cooked meat — roughly 6 lbs eaten at dinner, 2 lbs for sandwiches.

Frequently Asked Questions

• How big should my turkey be?

  No leftovers: 1 lb/person. Some leftovers: 1.25 lbs. Generous leftovers: 1.5 lbs. For 12 guests wanting leftovers: 15–18 lb turkey.

• How long does it take to thaw a turkey?

  In the fridge: 24 hours per 4–5 lbs. A 15 lb turkey needs 3–4 days. Cold water method: 30 min per pound, changing water every 30 min. Never thaw at room temperature.

• How long does it take to cook a turkey?

  At 325°F: 12–14 lb = 3–3.75 hours; 14–18 lb = 3.75–4.25 hours; 18–20 lb = 4.25–4.5 hours; 20–24 lb = 4.5–5 hours. Always use a meat thermometer — 165°F in the thickest part of the thigh.

• How many pies for Thanksgiving?

  One 9" pie serves 8. For 12 guests, make 2 pies (offer variety: pumpkin + pecan or apple). For 20+ guests, make 3 pies.

• Can I cook the turkey the day before?

  Not recommended for best quality. You can, however: prep the turkey (dry brine, season) the night before; make stuffing, cranberry sauce, and pie the day before; prep vegetables the morning of.

• What if my turkey is too big for the oven?

  Maximum turkey size for a standard 30" oven is about 24 lbs. For very large groups (20+), consider two smaller turkeys (12–14 lbs each) — they cook faster and more evenly.