This is the most common math problem at the meat counter. You’re hosting, you don’t want to run out, but you also don’t want to overbuy. Here’s the formula.

The Universal Rule

8 ounces (half a pound) of raw meat per person for a main course.

That’s your baseline. It accounts for cooking loss (meat loses 25-30% of its weight during cooking) and gives you a generous serving. For most adults eating a standard dinner with sides, this works.

Adjust Up or Down

Go Higher (10-12 oz per person) When:

  • Bone-in cuts — bones add weight but not meat. A 12 oz bone-in ribeye has roughly the same amount of meat as an 8-10 oz boneless
  • Ribs and bone-in roasts — plan 1 lb per person for spare ribs, 1 lb per person for bone-in prime rib
  • Your crowd is hungry — guys’ night, post-workout, or light sides and the meat is the star
  • BBQ — people eat more at a cookout. Trust me on this.
  • Brisket or pulled pork — these lose up to 40% during cooking. Start with 3/4 to 1 lb raw per person.

Go Lower (5-6 oz per person) When:

  • Heavy sides or appetizers — big salad, potatoes, bread, multiple starters
  • Mixed crowd — kids, lighter eaters, vegetarian options available
  • Stir-fry, tacos, pasta — the meat is part of the dish, not the whole thing. 4-6 oz raw per person is plenty.
  • Charcuterie or grazing — 2-3 oz per person when it’s one of many things on the board

Cut-Specific Cheat Sheet

What You’re MakingRaw Weight Per Person
Boneless steaks (ribeye, strip, filet)8 oz
Bone-in steaks (T-bone, tomahawk, porterhouse)12-16 oz
Bone-in roast (prime rib, standing rib)1 lb (roughly 1 rib per 2 people)
Boneless roast (tenderloin, sirloin roast)8 oz
Ground beef (burgers)6-8 oz per patty
Ground beef (tacos, sauce, chili)4-5 oz
Stew meat6-8 oz
Brisket12-16 oz raw (yields about 8 oz cooked)
Pulled pork12 oz raw (yields about 8 oz cooked)
Spare ribs1 lb (about 3-4 ribs)
Baby back ribs3/4 lb (about half a rack)
Chicken breast6-8 oz
Whole chicken1-1.5 lb per person (a 4 lb chicken feeds 3-4)
Lamb chops3-4 chops (about 8-10 oz total)

The Event Formula

For a party or gathering, here’s the quick math:

  1. Number of guests × raw weight per person = total raw weight needed
  2. Add 10-15% for hungry eaters and seconds
  3. Don’t subtract for kids under 10 — just count them as half portions

Example: Grilling steaks for 8 people

  • 8 × 8 oz = 64 oz (4 lbs) of boneless steaks
  • Add 15% buffer: about 4.5 lbs total
  • That’s roughly 8 steaks at 8-9 oz each

Example: Pulled pork for 12 people

  • 12 × 12 oz = 144 oz (9 lbs) raw pork butt
  • Add 10%: about 10 lbs raw
  • That yields roughly 6-7 lbs of pulled pork — plenty

The Leftover Strategy

Honestly? Slight overbuy is better than running short. Leftover steak makes great next-day sandwiches, tacos, or stir-fry. Running out of meat at a dinner party is a problem that leftovers never will be.

The Bottom Line

8 oz per person for boneless, 12-16 oz for bone-in, scale up for BBQ/slow-cook cuts that shrink. When in doubt, buy a little more. Your future self eating leftover steak at midnight will thank you.