Buy the right amount of ribs for any barbecue. Enter guests, rib cut and serving style to get bones, racks, raw pounds and sauce in one plan.
Your results will appear here.
Enter your values and press Calculate.
This bbq ribs calculator turns a guest count into a butcher-ready order. Enter the number of guests, choose the rib cut, and choose whether ribs are the main dish, shared with other meats, or an appetizer, and it returns total rib bones, racks to buy, raw pounds and barbecue sauce in cups. The ribs per person calculator counts bones first, because ribs are served and eaten bone by bone, then converts bones into whole racks you can actually buy.
How many ribs per person depends on the cut, because cuts carry different amounts of meat per bone. Baby back ribs per person run about 6 bones as a main dish, since baby backs are smaller and leaner, while St Louis ribs per person run about 4 bones and spare ribs per person also run about 4 bones, since those racks are meatier. Beef ribs per person run about 3 bones for beef back ribs, and just 1 bone per adult for beef plate ribs, because one plate bone can be a full meal. When ribs share the table with other meats, drop to about 3 bones for baby backs and 2 to 3 bones for St Louis and spare ribs, and as an appetizer plan about 2 bones per guest.
Using this bbq ribs calculator takes under a minute. First, enter the number of guests who will eat ribs. Second, choose the rib cut: baby back, St Louis, spare or beef back. Third, choose the serving style: main when ribs carry the meal, shared when other meats join the table, or appetizer for a starter round. For ribs for 20 people as a baby back main, the result is 120 bones, 11 racks, 22.0 raw pounds and 4.0 cups of sauce. For ribs for 50 people as a St Louis main, the result is 200 bones, 17 racks, 46.8 raw pounds and 10.0 cups of sauce.
Ribs raw vs cooked weight is the trap in every barbecue plan, so always buy by raw weight. A baby back rack weighs about 2 pounds and feeds about 2 people, a St Louis rack weighs about 2.75 pounds and feeds 2 to 3 people, a whole spare rack weighs about 3.5 pounds and feeds about 3 people, and a beef back rack weighs about 3 pounds. About half the weight of bone-in ribs is bone, so each guest gets roughly half a pound of meat from a 1 pound raw portion. Baby backs lose about 25 percent in cooking, while brisket and pulled pork lose close to half, which is why a mixed bbq meat per person plan cannot use one rule for every cut.
Ribs cooking temperature guidance is simple: pork ribs and pork butt are safe at 145 degrees Fahrenheit with a 3-minute rest, but cook them to 195 to 205 degrees Fahrenheit for tenderness. Burgers need 160 degrees Fahrenheit and chicken needs 165 degrees Fahrenheit with no exceptions. Bbq ribs sauce per person runs about 0.1 pounds, which this calculator expresses as 0.2 cups per guest. For ribs appetizer vs main planning, remember kids count as about half an adult, 3 or more filling sides let you trim portions, and parties over 20 guests deserve about 10 percent extra for big appetites. Do not leave cooked meat out more than 2 hours, or 1 hour above 90 degrees Fahrenheit.
Plan 6 bones per adult for baby back ribs as a main dish, 4 bones for St Louis or spare ribs, and 3 bones for beef back ribs. Drop to about half when ribs share the table with other meats.
Baby backs are smaller, leaner and curved, with 8 to 13 bones per rack, while St Louis ribs are trimmed spare ribs with a rectangular shape, 10 to 12 bones per rack, and more fat that renders during slow cooking.
For a crowd of 20 people eating baby back ribs as a main dish, you need 11 racks. For St Louis or spare ribs as a main dish, you need about 7 racks, since each rack carries more meat per bone.
Always plan by raw weight. Bone-in ribs lose weight in cooking and about half the raw weight is bone, so a 1 pound raw portion per guest leaves about half a pound of meat on the plate.
For 50 people eating baby back ribs as a main dish, plan 300 bones, or 28 racks at 11 bones per rack, weighing about 56 raw pounds. For St Louis ribs as a main dish, plan 200 bones, or 17 racks.
Plan about 3 beef back rib bones per adult as a main dish, or about 1 beef plate rib bone per adult, since plate ribs are much larger and one bone can feed a person.
Pork ribs are safe at 145 degrees Fahrenheit with a 3-minute rest, but cook them to 195 to 205 degrees Fahrenheit for tender meat that pulls cleanly from the bone.
Yes, add about 10 percent for parties over 20 guests to cover big appetites. Leftover smoked meat freezes well for up to 3 months and reheats beautifully.
Wing Platter
Size a pasta bar without running out
Size the pot for every soup crowd
Count every mini dessert before the party
Brew the right amount for every crowd
Size cheese and chocolate fondue for every table