How much to serve per person: the range the sources give
Start with the main dish, because it drives the rest of the math. USDA guidance as reproduced in the University of Wisconsin Extension brochure "Let's Talk Turkey" says to allow 1 pound of turkey per person, and 1 1/4 pounds for frozen pre-stuffed birds. South Dakota State University Extension repeats "approximately one pound of turkey per person". Whole Foods Market, in its serving chart, uses 1 1/4 pounds per person and says the figure includes the bone. A Butterball chart reproduced by Hamilton Beach runs from 3 to 6 pounds for 2 to 4 guests up to 15 pounds or more for 10 or more, and the same page says to figure 1 pound per person plus 1/2 pound each for leftovers.
View the data
| Category | Value |
|---|---|
| Seara: 3 kg for 8 | 375 g |
| USDA: 1 lb | 454 g |
| Whole Foods: 1 1/4 lb | 567 g |
| Hamilton Beach: 1 lb + 1/2 lb leftovers | 680 g |
The overall range, from about 13 ounces to 1 1/2 pounds (375 to 680 grams) of raw bird per person, looks wide, but three things explain almost all of it. The first is raw weight versus cooked weight: Rutgers Cooperative Extension says 1 to 1 1/2 pounds of raw turkey per person yields about 10 ounces (283 g) of cooked meat. The Brazilian numbers agree from the other side: Seara's 375 g raw per person is meant to put 250 g of meat on the plate, so roughly two thirds of the bird becomes served meat and the rest is bone, skin and water lost in the oven (the source does not break it down). The second is the bone: bone-in ham calls for 1/3 to 1/2 pound per person and boneless 1/4 to 1/3 (SDSU Extension). The third is the number of dishes. With six sides and three desserts nobody takes seconds of the meat; with a three-dish menu everyone does.
Table by dish: meat, sides, desserts and drinks
| Item | Per person | Source and note |
|---|---|---|
| Turkey (raw, bone-in) | 1 lb (USDA); 1 1/4 lb (Whole Foods) | USDA via Wisconsin Extension and SDSU Extension: 1 lb. Whole Foods: 1 1/4 lb including bone. |
| Ham, bone-in | 1/3 to 1/2 lb | SDSU Extension, citing USDA FSIS "Hams and Food Safety" (2016). |
| Ham, boneless | 1/4 to 1/3 lb | SDSU Extension. |
| Prime rib | Bone-in: 1 rib per 2 people; boneless: 1/2 to 3/4 lb | SDSU Extension. |
| Stuffing | 3/4 cup | Whole Foods Market. |
| Potatoes or other starch | 3/4 cup cooked, or 1/2 lb raw potatoes | Whole Foods Market. |
| Vegetable sides | 1 cup | Whole Foods Market. |
| Salad | 2 cups | Whole Foods Market. |
| Gravy | 1/2 cup | Whole Foods Market. |
| Rolls or bread | 1 piece | Whole Foods Market. |
| 9-inch pie | 1 slice | Whole Foods Market. |
| Wine | 1/2 bottle | Whole Foods Market. Plan non-alcoholic drinks for everyone who does not drink wine. |
| Appetizers, cheese and dips | Appetizers 3 pieces; cheese 2 oz; dips 3 oz | Whole Foods Market. |
Two caveats about this table. First, the rows do not add up to a whole menu. Nobody eats a full serving of every dish plus the dessert plus half a bottle of wine, and the sources treat each row as the ceiling for that item at a party where it is the star. Second, the Whole Foods column assumes a Thanksgiving-style spread; for a Christmas table with ham or prime rib alongside the turkey, shrink each meat accordingly, since the guests are splitting the protein between them. When two recent sources disagree, plan with the range between them and write down which number you chose.
Worked example: dinner for 10 and for 20 guests
Suppose an adults-only dinner with a bird as the centerpiece and the classic sides. The table below applies the rates from the sources above; the multiplication is ours and the "basis" column says where each rate comes from. If small children are coming, the Christmas Dinner Calculator lets you count them separately instead of rounding in your head.
| Item | 10 guests | 20 guests | Basis |
|---|---|---|---|
| Turkey, raw (1 lb) | 10 lb | 20 lb | USDA, 1 lb per person |
| Turkey, raw (1 1/4 lb) | 12 1/2 lb | 25 lb | Whole Foods, with bone |
| Turkey, raw (1 1/2 lb, leftovers) | 15 lb | 30 lb | Hamilton Beach: 1 lb + 1/2 lb; Butterball chart: 15 lb or more for 10+ |
| Ham, bone-in (if second meat) | 3 1/3 to 5 lb | 6 2/3 to 10 lb | 1/3 to 1/2 lb per person |
| Prime rib, bone-in | 5 ribs | 10 ribs | 1 rib per 2 people |
| Stuffing | 7 1/2 cups | 15 cups | 3/4 cup per person |
| Potatoes (cooked) | 7 1/2 cups (or 5 lb raw) | 15 cups (or 10 lb raw) | 3/4 cup, or 1/2 lb raw per guest |
| Vegetable sides | 10 cups | 20 cups | 1 cup per person |
| Gravy | 5 cups | 10 cups | 1/2 cup per person |
| Rolls and pie slices | 10 rolls, 10 slices | 20 rolls, 20 slices | 1 roll and 1 slice per person |
| Wine | 5 bottles | 10 bottles | 1/2 bottle per person; add non-alcoholic drinks |
| Salad | 20 cups | 40 cups | 2 cups per person |
Read the first rows carefully. For 20 guests, even the 1 pound rate calls for 20 pounds, close to the top of the USDA timetable (which stops at 24 pounds), and the generous 1 1/2 pound rate asks for 30 pounds, more than any single bird in the table. That is the signal to roast two smaller birds, or one bird plus a ham or a prime rib, instead of hunting for one giant turkey. Two 12 to 14 pound birds each take 3 to 3 3/4 hours unstuffed at 325 F, and finish sooner than one 24 pound bird would. Whichever you choose, the thawing math scales with weight, so work backward from the day of the dinner using the next section.
With the list closed, the money is left. At a potluck, each household brings a dish or splits the shopping, and whoever tracks it in a group chat tends to forget someone. Split the Bill divides by person or by what each ate, without a spreadsheet. And if someone is putting the bird in at 6 a.m., the Online Timer covers the "change the water" and "take it out" alerts in the next sections.
Thawing the bird safely
Thawing is the step where most mistakes happen and where safety costs the most. The USDA guide, as reproduced by University of Wisconsin Extension, lists three safe ways to thaw: in the refrigerator, in cold water or in the microwave oven. The University of Nebraska-Lincoln explains why the counter is not on the list: the outer layer of the bird enters the "Danger Zone", between 40 and 140 F, where bacteria multiply quickly, while the center is still frozen. Brazil's Anvisa says the same in its 2024 Christmas dinner guidance: do not thaw at room temperature, thaw under refrigeration below 5 C (41 F) or in the microwave when the food is cooked right after.
| Weight of the bird | Refrigerator (40 F or below) | Cold water |
|---|---|---|
| 4 to 12 lb | 1 to 3 days | 2 to 6 hours |
| 12 to 16 lb | 3 to 4 days | 6 to 8 hours |
| 16 to 20 lb | 4 to 5 days | 8 to 10 hours |
| 20 to 24 lb | 5 to 6 days | 10 to 12 hours |
- In the refrigerator, the easiest optionKeep the bird in its original wrapper on a tray or in a pan to catch any juices, on the lowest shelf and away from ready-to-eat food (SDSU Extension). USDA allows about 24 hours for every 4 to 5 pounds. Once thawed it can wait 1 to 2 more days in the refrigerator before it goes in the oven.
- In cold water, when time ran shortWrap the bird so water cannot leak in, submerge it in cold tap water and change the water every 30 minutes; allow about 30 minutes per pound. Cook it immediately after thawing and do not refreeze. This is the job for the Online Timer: a repeating 30-minute alarm.
- In the microwave, only if it fitsCheck your owner's manual for the largest bird that fits, minutes per pound and power level, remove all outside wrapping and cook immediately. USDA says a turkey thawed in the microwave should be neither refrigerated again nor refrozen.
- Take out the giblets after thawingThe giblets are inside the cavity. Remove them after thawing and cook them separately, as the USDA guide reminds.
One note on brands. If you buy a pre-basted or specially processed bird, the package may carry its own thawing and oven times, and those win for that product. Two things never change from bird to bird: no counter thawing, and a thermometer reading at the end. Frozen pre-stuffed birds that carry a USDA or state mark of inspection are the exception: USDA says to cook them from frozen, following the package directions. One more detail from the USDA guide: a turkey properly thawed in the refrigerator can be refrozen without cooking, with some loss of quality, but one thawed in cold water or the microwave cannot.
Roasting, taking the temperature and letting it rest
Color does not tell you the bird is done, and neither does the clock: table times are approximate. The thermometer decides. USDA says a whole turkey is safe at a minimum internal temperature of 165 F, measured in the innermost part of the thigh and wing and the thickest part of the breast. With an oven-safe thermometer, USDA suggests placing it in the thickest part of the inner thigh from the start and, once the thigh reads 165 F, checking the wing and breast. SDSU Extension puts it simply: go by the lowest temperature you measure. Brazil's food-service rule (RDC 216) asks that every part of the food reach at least 70 C, which 165 F (74 C) satisfies.
| Weight | Weight (kg) | Oven time |
|---|---|---|
| 4 to 8 lb (breast) | 1.8 to 3.6 | 1 1/2 to 3 1/4 hours |
| 8 to 12 lb | 3.6 to 5.4 | 2 3/4 to 3 hours |
| 12 to 14 lb | 5.4 to 6.4 | 3 to 3 3/4 hours |
| 14 to 18 lb | 6.4 to 8.2 | 3 3/4 to 4 1/4 hours |
| 18 to 20 lb | 8.2 to 9.1 | 4 1/4 to 4 1/2 hours |
| 20 to 24 lb | 9.1 to 10.9 | 4 1/2 to 5 hours |
- Oven no lower than 325 F, per USDA. Put the bird on a rack in a shallow roasting pan.
- Stuffing: USDA does not recommend stuffing the bird and suggests cooking the stuffing separately in a casserole; it also has to reach 165 F in the center. If you do stuff, fill the cavity loosely and cook immediately.
- Pop-up indicator: still check with a thermometer, the USDA guide says.
- Roasting from frozen? USDA says it is safe, but it takes at least 50 percent longer than a fully thawed bird.
- Resting: for quality, USDA says to let the turkey stand for 20 minutes before carving so the juices set. Set the Online Timer for 20 minutes. The rest is not a safety step, it makes the meat juicier and easier to carve.
Ham and prime rib
- Ready-to-eat ham from its original package: heat to 140 F (SDSU Extension, citing USDA). Cook-before-eating ham: 145 F with a 3-minute rest. Ham not in its original package or previously heated: 165 F.
- Prime rib: pull it at 130 to 135 F for medium rare or 140 to 145 F for medium, and rest 10 to 15 minutes before carving (SDSU Extension).
Turkey breast and smaller birds
- USDA lists breasts of 4 to 8 pounds at 1 1/2 to 3 1/4 hours at 325 F. Same criterion: 165 F in the thickest part.
- A small roast is no reason to skip the thermometer: the criterion applies at any size.
The two-hour rule and what to do with leftovers
After all that care with the bird, the most common mistake is leaving the platter out all night. The USDA guide says to discard turkey, stuffing and gravy left out at room temperature longer than 2 hours, or longer than 1 hour in temperatures above 90 F, which a hot, crowded kitchen can easily reach. Brazil's RDC 216 uses a different yardstick for food services: hold hot food above 60 C (140 F) for at most 6 hours and cool from 60 C to 10 C within 2 hours. At home the practical rule is the USDA's: serve, eat and put it away within two hours.
- Write down when the food went to the table and set a two-hour alarm on the Online Timer.
- Anvisa advises keeping hot food above 60 C (140 F) and cold food below 5 C (41 F) until it is served, and cutting the time between cooking and eating as much as possible.
- Divide leftovers into smaller portions and refrigerate or freeze in covered shallow containers so they cool faster (USDA).
- Keep raw and cooked food apart, and wash anything that touched the raw bird, its juices or the sink before reusing it.
- Reheat what you will eat hot to 165 F (74 C), checking with a thermometer (USDA and SDSU Extension).
| Source | Food | Time |
|---|---|---|
| USDA via Wisconsin Extension | Turkey, stuffing and gravy | 3 to 4 days |
| Rutgers Cooperative Extension (2024) | Turkey and stuffing; gravy | 3 to 4 days; gravy 1 to 2 days |
| SDSU Extension (2024) | Meat leftovers | Within 4 days (eat or freeze) |
| USDA via Wisconsin Extension | Frozen leftovers | 2 to 6 months for best quality |
The difference between a 5-day window and a 3-to-4-day window is not a contradiction, it is a choice by the people writing the rule. A fridge set at 40 F is about 4 C, and the real temperature of a home refrigerator is rarely measured, so the cautious path for the bird is the shorter window: eat it within 3 to 4 days and freeze what will not get eaten. Gravy is the most delicate: Rutgers gives 1 to 2 days. An appliance thermometer in the refrigerator costs little and tells you whether you are really at 40 F or below.
Frequently asked questions
How much holiday dinner food do you need per person?
How much turkey per person?
How big a turkey for 10 people?
How do you thaw a turkey safely?
Can you thaw a turkey on the counter?
What temperature is turkey done?
How long do holiday leftovers last in the refrigerator?
How much ham per person for a holiday dinner?
For the table, plan about 1 pound of raw turkey per person (1 1/4 to 1 1/2 pounds for a generous menu or leftovers) and scale the sides from the per-person rates in the table. Thaw in the refrigerator, never on the counter, measure 165 F in the innermost thigh and wing and the thickest part of the breast, let the bird rest 20 minutes for the juices and get everything into the refrigerator within 2 hours. For turkey, use the shorter leftovers window: 3 to 4 days.
Sources & references
- USDA FSIS, "Let's Talk Turkey: A Consumer Guide to Safely Roasting a Turkey" (2004, rev. 2010), as reproduced by University of Wisconsin Extension (thawing, oven times, 165 F, resting and leftovers)
- SDSU Extension (C. Bakker, June 2024), Tips for Purchasing and Preparing Turkey, Ham and Prime Rib
- Rutgers Cooperative Extension (October 2024), Turkey Talk: Answers to Your Thanksgiving Food Safety Questions
- University of Nebraska-Lincoln, UNL Food: How to Thaw a Turkey
- Whole Foods Market, Thanksgiving dinner: how much to serve
- Hamilton Beach, turkey size by guest count (source credited: Butterball Turkey Talk-Line)
- Anvisa (December 23, 2024), Ceias de fim de ano com segurança sanitária e saúde no prato (Brazil's year-end dinner food safety guidance)
- Anvisa, Resolution RDC 216 of September 15, 2004, food-service good practices (items 4.8.8, 4.8.13, 4.8.15, 4.8.16 and 4.8.17)
- TudoGostoso (Isabela Henriques, December 18, 2024), how to calculate the amount of food for the Christmas dinner (Brazilian portion planning)
- TudoGostoso (December 4, 2017), how to calculate food and drink for the dinner (older Brazilian portion planning)
- TudoGostoso (December 11, 2023), how many people 1 kg of rabanada serves (Brazilian French-toast dessert)
- ValorFinal, Christmas dinner menu guide (quotes Seara, Perdigão and the Norwegian Seafood Council; Brazilian bird sizes)