Short answer: Plan on 4 ounces (a quarter pound) of raw ground beef per adult for burgers, chili and meatballs, 5 ounces for tacos, and 3 ounces for sloppy joes, meat sauce and casseroles, where buns, pasta, beans or rice fill part of the plate. Raw beef loses about a quarter of its weight in the pan, so 4 ounces raw ends up near 3 ounces cooked. Count a child as half an adult and big eaters as one and a half. For 20 adults that comes to about 5 pounds for burgers and 6.3 pounds for tacos.
Cooking for a group starts with one number, and the dinner recipes you pick change it, because a burger is all beef while a bowl of chili is half beans. Below you get a per-person amount for each dish, the shrink to expect from 80/20 and 90/10 beef, and a table for 10, 20 and 50 people.
How Much Ground Beef Do You Need Per Person?
Start from 4 ounces raw per adult, which is one quarter-pound patty, then move up or down by how much else is on the plate. Tacos run higher because two or three of them hold more beef than one burger does. Sloppy joes, meat sauce and casseroles run lower because the bun, the pasta or the potatoes fill the plate first.
| Dish | Adult (raw) | Big eater (raw) | Child under 12 (raw) |
|---|---|---|---|
| Burgers | 4 oz (one ¼-lb patty) | 6 oz | 2 oz (one slider) |
| Tacos | 5 oz (2 to 3 tacos) | 8 oz | 3 oz |
| Meatballs over pasta | 4 oz (about 3 meatballs) | 6 oz | 2 oz |
| Chili with beans | 4 oz | 6 oz | 2 oz |
| Sloppy joes | 3 oz (one sandwich) | 6 oz (two sandwiches) | 2 oz |
| Meat pasta sauce | 3 oz | 5 oz | 2 oz |
| Casseroles | 3 oz | 5 oz | 2 oz |
These are our planning numbers, built on the 3-ounce cooked serving the Beef Checkoff uses for nutrition facts, and 4 ounces raw cooks down to about that. The big-eater column is for teenagers, second helpings and anyone who skipped lunch. If you are unsure about a crowd, use that column for the first plates and the adult column for the rest.
Each dish has its own reason for the number:
- Burgers: two small patties eat about like one big one, so plan the weight and not the patty count. Adults often take two sliders instead of one burger, but two 2-ounce sliders still add up to the same 4 ounces.
- Tacos: a taco holds about 2 ounces of raw beef, so a plate of two or three lands at 4 to 6 ounces. A full spread of toppings and rice pulls that down, which is how one pound can stretch across a whole taco night.
- Chili: beans and tomatoes carry the bowl, so a pound of beef serves four adults, or five if they take smaller bowls. That is why a big pot of award-winning chili can still feed a crowd on modest beef.
- Casseroles and pasta sauce: pasta, rice and cheese do most of the filling, so 3 ounces per adult is enough unless the recipe is mostly beef.
How Much Does Ground Beef Shrink When You Cook It?
Raw ground beef loses water and melted fat in the pan, so a pound of raw beef gives you roughly 12 ounces cooked. The USDA Food Buying Guide, which school kitchens use to order meat, puts the yield for ground beef with no more than 20 percent fat at 74 percent once it is cooked and drained.
| Ground beef | Cooked and drained, per 1 lb raw | Lost per pound | Where it works best |
|---|---|---|---|
| 80/20 | 74 percent, 11.8 oz | 4.2 oz | Burgers and meatballs, where the fat keeps them juicy |
| 85/15 | 75 percent, 12 oz | 4.0 oz | A middle choice for almost anything |
| 90/10 | 76 percent, 12.2 oz | 3.8 oz | Tacos, chili, sauce and casseroles, where you drain the pan |
The gap between 80/20 and 90/10 is only about 0.4 ounce per pound, so you do not need to buy extra when you choose the fattier beef. What changes is the pan. Eighty-twenty crumbles leave a pool of fat you pour off, while 90/10 leaves little, and a 90/10 patty can come out drier unless you cook it gently. If a butcher offers ground sirloin, ask for its fat percentage and treat it like the matching ratio above.
How Do You Turn Cooked Weight Into Raw Pounds?
A recipe that says "1 pound ground beef" means raw unless it says "cooked" or "browned." When you know how much cooked beef you want on the plate, work backward in four steps:
- Pick the cooked amount per person. Use 3 ounces for a standard serving.
- Multiply by your guests. For 20 people, 20 x 3 oz = 60 oz, which is 3.75 lb cooked.
- Divide by 0.75. Beef keeps about 75 percent of its weight, so 3.75 lb / 0.75 = 5 lb raw.
- Round up to a whole package. Five pounds is five 1-pound packs or one 5-pound chub.
That answer matches the 4-ounce adult number in the first table, which is a good check that the rule of thumb holds. Both routes land on 5 pounds for 20 people.
How Much Ground Beef for 10, 20 or 50 People?
The table below is raw pounds for a group of adults with normal appetites. Round up to the next whole pound, because a short pan of tacos is a bigger problem than a spare half pound in the fridge.
| Dish (raw ounces per adult) | 10 people | 20 people | 50 people |
|---|---|---|---|
| Burgers, chili, meatballs (4 oz) | 2.5 lb | 5 lb | 12.5 lb |
| Tacos (5 oz) | 3.1 lb | 6.3 lb | 15.6 lb |
| Sloppy joes, meat sauce, casseroles (3 oz) | 1.9 lb | 3.8 lb | 9.4 lb |
| Hungry crowd, burgers (6 oz) | 3.8 lb | 7.5 lb | 18.8 lb |
| Hungry crowd, tacos (8 oz) | 5 lb | 10 lb | 25 lb |
Kids lower the total fast. Count two children as one adult, so 20 guests with 8 kids at a taco dinner is 12 adults plus 4 adult-equivalents, which is 16 x 5 oz = 80 oz, or 5 pounds. A buffet also eats lighter than a plated meal when the sides are filling, and filling sides at a taco bar or beside party chili help the beef go further.
For 50 people, a few habits protect both the budget and the guests:
- Cook in batches and keep the finished beef at 140°F or hotter, because the USDA says food sitting between 40°F and 140°F should not stay out more than two hours, or one hour above 90°F.
- Buy one or two days ahead or freeze it, because FSIS says raw ground beef keeps only 1 to 2 days in the fridge.
- Subtract guests who skip beef before you shop, and plan a ground beef swap for any who still want the same dish.
What Temperature Should Ground Beef Reach?
The USDA says a hamburger cooked to 160°F on a food thermometer is safe regardless of color. Color is a poor guide because some ground beef turns brown before it is safe, and some stays pink after it is. Push the probe into the thickest part of a patty or meatball from the side, and for a pan of crumbles check a few spots.
Leftovers are good for 3 to 4 days if you refrigerate them within two hours, according to the USDA on leftovers and food safety. That makes a crowd batch of beef a good base for a second dinner of quick ground beef recipes.
Sources
- USDA Food Buying Guide for Child Nutrition Programs: cooked and drained yields for ground beef by fat level.
- USDA FSIS, Food Thermometers: 160°F for hamburgers regardless of color.
- USDA FSIS, Color of Cooked Ground Beef as It Relates to Doneness.
- USDA FSIS, Ground Beef and Food Safety: raw storage time.
- USDA FSIS, Danger Zone (40°F to 140°F).
- USDA FSIS, Leftovers and Food Safety.
- Beef Checkoff, Beef Nutrients: 3-ounce cooked serving.
Frequently Asked Questions
Four quarter-pound patties, or eight 2-ounce sliders.
About 10 to 11 meatballs at 1.5 ounces raw each, or 8 at 2 ounces. Bind them with breadcrumbs and egg and the count rises a little because the mix weighs more than the beef alone.
Weigh it raw when you shop, and use the cooked figure only when a recipe or a nutrition label says "cooked." Mixing the two is the usual reason a pan comes up short.
Andrew Gray is a passionate food writer and recipe creator who built Gusto Meadow to celebrate delicious, approachable cooking. With years of experience in restaurants and catering, he brings a grounded, real-world understanding of flavors, technique, and what truly works in a home kitchen.
At Gusto Meadow, Andrew focuses on fresh, seasonal ingredients and simple methods that anyone can follow. His goal is to make cooking feel fun, doable, and rewarding — whether you’re preparing a quick weeknight dinner or exploring something new.
