How much protein is in chicken breast? By serving
Chicken breast is one of the most common protein foods there is, but the number you see depends on how you measure it. Raw or cooked, per 100 grams or per breast, the answers can look very different.
Here is a simple breakdown of how much protein chicken breast provides by serving, why cooked and raw numbers differ, and how to log it without getting tripped up.
Quick answer
Cooked, skinless chicken breast provides roughly 30 to 32 grams of protein per 100 grams, or about 34 to 36 grams in a 4 oz cooked serving. Raw chicken breast has less protein per 100 grams, around 22 to 24 grams, because it still contains water that cooks off. A whole cooked breast often lands somewhere between 40 and 60 grams depending on its size. Proto can estimate the protein in a chicken meal from a photo, so you do not need to look these numbers up each time.
Protein in chicken breast by serving
These are approximate values for plain, skinless chicken breast. Breaded, marinated, or skin-on chicken will differ, and brands vary, so check the label when you want an exact figure.
| Serving | Cooked | Raw |
|---|---|---|
| 100 g | 30 to 32 g | 22 to 24 g |
| 3 oz (85 g) | 26 to 27 g | 19 to 20 g |
| 4 oz (113 g) | 34 to 36 g | 25 to 27 g |
| 8 oz (227 g) | 68 to 72 g | 50 to 54 g |
| 1 whole breast | 40 to 60 g, depending on size | Varies widely |
Why cooked and raw numbers are different
Cooking does not add protein. It removes water. A raw chicken breast loses a good share of its weight in the pan or oven, so the same amount of protein ends up packed into fewer grams of cooked meat.
That is why 100 grams of cooked chicken shows more protein than 100 grams of raw chicken. The most common tracking mistake is weighing the chicken after cooking and then using a raw nutrition value, or the other way around. Pick one method and match it to the right number.
Skin and preparation matter too. Skin-on chicken adds fat with little extra protein, and breading or sauces add carbs and calories that change the overall picture of the meal.
Making chicken breast easy to track
Weighing every portion is accurate, but most people do not keep it up for long. A rough sense of portion size often gets you close enough to see patterns across a week. A 4 oz cooked portion is about the size of a deck of cards, and our guide to what 30 grams of protein looks like shows how chicken compares with other common foods.
Proto reads a photo of your plate and estimates protein and fiber together, so chicken with rice and vegetables logs as one meal. If you want to see how the rest of your day adds up, our guide on how to track protein intake covers simple routines that tend to stick.
Takeaway
Chicken breast is protein dense, but the number depends on whether it is measured raw or cooked. Use roughly 30 to 32 grams per 100 grams cooked, or 22 to 24 grams per 100 grams raw, and keep your weighing method consistent so your totals stay reliable.
Please note: Proto does not provide medical or dietary advice. Always consult a qualified healthcare professional to determine appropriate protein intake for your needs.
Frequently asked questions
How much protein is in 100 grams of chicken breast?
Cooked, skinless chicken breast typically has around 30 to 32 grams of protein per 100 grams. Raw chicken breast has less per 100 grams, roughly 22 to 24 grams, because it still holds water that cooks off.
How much protein is in 4 oz of chicken breast?
About 4 oz (113 g) of cooked, skinless chicken breast usually provides roughly 34 to 36 grams of protein. The same 4 oz weighed raw provides about 25 to 27 grams.
Should I weigh chicken raw or cooked?
Either works, as long as you match the weight to the right nutrition value. Raw and cooked numbers are different because cooking removes water, so mixing a cooked weight with a raw value is the most common source of error.
Can Proto log chicken from a photo?
Yes. Proto reads a photo of your plate and estimates protein and fiber automatically, so a chicken breast with sides logs as one meal without manual entry.