A typical cooked, skinless chicken breast has about 50–55 grams of protein for an average 6 oz (170 g) piece, which works out to roughly 31–32 grams of protein per 100 grams of cooked chicken breast.

Quick Scoop: Key Numbers

  • Per 100 g cooked, skinless chicken breast: ≈31–32 g protein.
  • Per ounce: about 8 g protein.
  • Typical medium breast (about 6 oz / 170 g cooked): ≈50–56 g protein.

So if you just eat “one chicken breast” at a meal, you’re usually getting around 50 g of protein , give or take a few grams depending on size.

Why Numbers Vary

The exact answer to “how many grams of protein are in a chicken breast” changes a bit because of:

  • Size of the breast – smaller store-brand breast vs. huge bulk-pack breast.
  • Raw vs. cooked weight – raw breast has more water, so per 100 g raw you’ll see closer to 23 g protein , but after cooking (losing water) it’s about 31–32 g per 100 g.
  • Skin on or off, added fat or breading – plain, skinless, cooked breast is the classic “lean protein” number most nutrition sites quote.

A good rule of thumb lifters and dieters often use is: one palm-sized cooked chicken breast = roughly 40–50 g protein.

Mini “Forum Style” Take

“How many grams of protein are in a chicken breast?”
Most nutrition nerds will answer something like:

  • “Call it ~30 g per 100 g cooked.”
  • “Average breast: about 50 g, big ones closer to 60 g.”
    And they’ll usually add: if you’re tracking macros seriously, weigh it (preferably raw) and use a consistent database entry so your numbers don’t bounce around.

Quick TL;DR

  • Use 31–32 g protein per 100 g cooked chicken breast as your base estimate.
  • A standard cooked chicken breast (around 6 oz / 170 g) = ≈50–55 g protein.

Information gathered from public forums or data available on the internet and portrayed here.