Thanksgiving Calculator
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Thanksgiving Calculator
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Formula: Turkey Weight = Guests x Lbs per Person | Cook Time = Weight x 13 min/lb (unstuffed)
Worked example โ 18 lb turkey, 3.9 hrs cook time, 2 pies, 6 lbs potatoes, 24 rolls, 1 qt gravy
Formula
Turkey Weight = Guests x Lbs per Person | Cook Time = Weight x 13 min/lb (unstuffed)
Turkey weight is calculated by multiplying the number of guests by the desired pounds per person (typically 1.5 lbs for bone-in). Cooking time assumes 325 degrees F at 13 minutes per pound unstuffed or 15 minutes per pound stuffed.
Worked Examples
Example 1: Classic 12-Person Thanksgiving
Problem:You are hosting 12 guests for Thanksgiving with 1.5 lbs turkey per person, 5 sides, and 1 pie per 6 guests.
Solution:Turkey: 12 x 1.5 = 18 lbs Cook time (unstuffed): 18 x 13 = 234 min = 3.9 hours Pies needed: 12 / 6 = 2 pies Mashed potatoes: 12 x 0.5 = 6 lbs Rolls: 12 x 2 = 24 rolls Gravy: 12 / 3 = 4 cups = 1.0 quart
Result:18 lb turkey, 3.9 hrs cook time, 2 pies, 6 lbs potatoes, 24 rolls, 1 qt gravy
Example 2: Large Family Gathering of 25
Problem:A large Thanksgiving for 25 guests with 1.5 lbs turkey per person, 6 sides, and 1 pie per 6 guests.
Solution:Turkey: 25 x 1.5 = 37.5 lbs (suggest two turkeys) Cook time per 19-lb turkey: 19 x 13 = 247 min = 4.1 hours Pies needed: 25 / 6 = 5 pies Mashed potatoes: 25 x 0.5 = 12.5 lbs Rolls: 25 x 2 = 50 rolls Gravy: 25 / 3 = 8.3 cups = 2.1 quarts
Result:37.5 lbs turkey (2 birds), 5 pies, 12.5 lbs potatoes, 50 rolls, 2.1 qt gravy
Frequently Asked Questions
How much turkey should I buy per person for Thanksgiving?
The general rule is 1 to 1.5 pounds of whole turkey per person. For bone-in turkey, use 1.5 pounds per person because roughly 40% of the weight is bone and will not be edible meat. If you want generous leftovers for sandwiches and soup, plan for up to 2 pounds per person. For boneless turkey breast, you can reduce that to about 0.75 pounds per person since there is minimal waste. A 12-person dinner typically requires an 18 to 20 pound turkey. If your crowd is especially large, consider cooking two smaller turkeys rather than one enormous bird, as smaller turkeys tend to cook more evenly and have better texture.
How long does it take to cook a turkey and at what temperature?
A whole turkey should be roasted at 325 degrees Fahrenheit. An unstuffed turkey takes approximately 13 minutes per pound, while a stuffed turkey requires about 15 minutes per pound due to the additional mass inside the cavity slowing heat transfer. For example, a 15-pound unstuffed turkey takes roughly 3 hours and 15 minutes, while the same bird stuffed takes about 3 hours and 45 minutes. Always use a meat thermometer to confirm the thickest part of the thigh reaches 165 degrees Fahrenheit. After cooking, let the turkey rest for 30 to 45 minutes before carving, which allows the juices to redistribute and results in moister, more flavorful meat.
How many side dishes should I prepare for Thanksgiving dinner?
Most Thanksgiving meals include between 4 and 7 side dishes alongside the turkey. The classic essentials are mashed potatoes, stuffing or dressing, cranberry sauce, gravy, and a green vegetable like green bean casserole. Beyond these, popular additions include sweet potatoes or yams, dinner rolls, corn, roasted vegetables, salad, and macaroni and cheese. Plan for approximately half a cup of each side dish per person. For a crowd of 12, that means each dish should yield about 6 cups or roughly 12 half-cup servings. Having a variety ensures guests with dietary restrictions can find suitable options and everyone has their favorites represented at the table.
How do I calculate how many pies to make for Thanksgiving?
A standard 9-inch pie typically yields 6 to 8 slices, depending on how generous you cut them. For Thanksgiving, assume each guest will eat at least one slice, with many wanting to sample multiple pie varieties. A good rule of thumb is one pie for every 6 guests if you are serving two or more varieties, as people tend to take smaller slices when they want to try different flavors. For 12 guests with two pie varieties, make 4 pies total to ensure everyone gets at least one slice of each kind. Popular Thanksgiving pie flavors include pumpkin, pecan, apple, and sweet potato. Consider that some guests may skip dessert entirely while pie enthusiasts will eat two or three slices.
How far in advance should I start preparing Thanksgiving dinner?
Thanksgiving preparation should begin several days before the actual meal for best results. Two to three days ahead, thaw your frozen turkey in the refrigerator, allowing 24 hours of thawing time for every 4 to 5 pounds of turkey. Two days before, prepare any make-ahead sides like cranberry sauce and pie dough. The day before, bake pies, prepare casserole bases, chop vegetables, make stuffing mixture, and set the table. On Thanksgiving morning, start the turkey first since it takes the longest. While the turkey cooks, prepare hot side dishes and time them to finish during the turkey rest period. This staggered approach prevents kitchen chaos and ensures everything reaches the table hot and fresh.
What are the safe options if the turkey is still frozen on the day?
Cold-water thawing is the fastest safe route: keep the bird in leak-proof packaging, submerge it completely in cold tap water, change the water every 30 minutes, allow about 30 minutes per pound, and roast it immediately afterwards. A still-frozen turkey can also go straight into the oven, taking at least half as long again as a thawed bird, with the cavity left unstuffed. Never thaw on the counter, where the outer layer sits at bacteria-friendly temperatures for hours before the centre softens.
Does brining change how long the turkey needs to roast?
Brining does not shorten the roast much on its own, but it changes the outcome. A wet brine or a dry salt cure lets salt penetrate the muscle, helping the proteins hold moisture so the breast stays juicier even if it overshoots slightly. A wet-brined bird carries surface water that must evaporate before the skin browns, so pat it thoroughly dry and consider air-drying it uncovered in the refrigerator overnight. Avoid brining a turkey that was pre-injected with a salt solution, since it will end up far too salty.
How much stuffing, gravy and mashed potato should I plan per person?
Plan side dishes in half-cup to three-quarter-cup portions per guest and increase quantities for the dishes you know your family favours. Gravy is the one people most often underestimate, since it goes on the turkey, the potatoes and the stuffing all at once, so making extra ahead and freezing it is a common insurance policy. For 12 guests, a side dish yielding about 8 to 9 cups covers a generous half-cup each with a little in reserve for second helpings.
How do I manage oven space when everything needs to roast at once?
Sequence the dishes around the turkey rather than competing with it. The bird occupies the oven for hours at 325 degrees Fahrenheit and then rests for 30 to 45 minutes, and that rest window is the prime slot for casseroles and rolls at higher temperatures. Move whatever you can to the stovetop, a slow cooker or a countertop oven, and bake pies the day before. Casseroles assembled in advance and brought to room temperature reheat far faster than ones going in fridge-cold.
How much should I plan for drinks at Thanksgiving dinner?
A seated holiday meal spreads over several hours, so plan roughly one drink per adult per hour and expect wine to dominate at the table. A 750 mL bottle pours about five glasses, so a dozen wine-drinking adults across an afternoon will work through several bottles. Provide plenty of water, since a salty roast dinner drives thirst, and set out a proper non-alcoholic option such as cider or a spiced punch rather than leaving non-drinkers with soda. Coffee and tea after dessert round out the meal.
References
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Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer ยท Editorial policy
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