How Many Calories Are in 100 Grams of Chicken Breast?

Chicken Protein Calculator: The Short Answer

The Full Picture

A chicken protein calculator is a tool that estimates the protein and calories in a serving of chicken from its cut and cooked weight. Cooked chicken breast is the leanest common cut at about 31g of protein and 165 kcal per 100g.

The short answer above is the planning figure; this section explains where it comes from and how far you can trust it. Every number here is a published reference value (label data, USDA-style references or the guideline named in the answer), and individual products vary — which is why the calculator on this page exists: to run the same maths on your exact inputs rather than on averages.

• Protein per 100g cooked: 31g
• Water loss in cooking explains the raw/cooked gap
• Cooked chicken breast: about 31g protein and 165 kcal per 100g
• Thigh: about 26g protein per 100g; drumstick about 27g; wing about 30g; ground chicken about 27g

How to Use the Calculator on This Page

Choose a cut and enter the cooked weight in grams. Values are for cooked, skinless meat unless the cut says otherwise — skin, breading and sauces add fat and calories. Raw chicken weighs roughly 25% more than the same piece cooked, so weigh after cooking for the closest match.

Enter your own numbers rather than copying the worked example: the estimates only become useful when they describe your body, your portion or your recipe. Then sanity-check the output against the reference figures in the short answer — if your result is far from them, an input (usually a portion size or an activity level) is the first thing to re-check.

What Chicken Protein Users Ask Most

Cooked, skinless chicken breast contains about 31g of protein and about 165 kcal per 100g.

A second recurring question is how much to trust the result. These tools compute from established formulas and reference data, so arithmetic errors are rare — input errors are not. Portions weighed rather than guessed, activity levels chosen honestly, and cooked-versus-raw states kept consistent will move your accuracy more than any change of formula. Where health decisions are involved (pregnancy, clinical nutrition, diabetes), treat the output as a starting point for a conversation with a professional, never as the conclusion.

Putting It Into Practice This Week

Pick one change suggested by your result and run it for seven days before judging it — nutrition changes compound quietly and single days are noise. Recheck your numbers whenever something material changes: body weight by more than a few pounds, a new training block, a different portion size becoming your default. The calculator stays on this page; the habit of checking it before you commit is the actual intervention.

• Rotisserie mixed meat averages about 25g protein per 100g.
• Skin and breading raise calories much faster than protein.
• A palm-sized 120g cooked breast provides roughly 37g of protein.

More Questions, Straight Answers

The questions below are the ones readers of the Chicken Protein Calculator ask most after the headline answer — each is answered from the same reference data the tool itself uses, so the numbers agree with what the calculator will show you.

Which chicken cut has the most protein per calorie? Breast. It has the highest protein and the lowest fat of the common cuts, at about 31g protein per 165 kcal.

Should I weigh chicken raw or cooked? These values are for cooked weight. Chicken loses roughly a quarter of its weight in cooking, so 130g raw becomes about 100g cooked.

Does dark meat have less protein? Slightly. Thigh and drumstick provide about 26–27g per 100g versus 31g for breast, and they carry more fat, so more calories per serving.

Making the Result Stick

A calculation changes nothing by itself; the routine built around it does. Write your result where the decision happens — the shopping list, the saved order, the meal plan on the fridge — and re-run the Chicken Protein Calculator when the routine changes rather than on a schedule: a new default portion, a different brand, a training block starting or ending. Nutrition targets are moving averages, and the people who hit them are the ones who recalculate at the moment of change, not the ones who calculate most often.

• Cooked chicken breast: about 31g protein and 165 kcal per 100g.
• Thigh: about 26g protein per 100g; drumstick about 27g; wing about 30g; ground chicken about 27g.
• Rotisserie mixed meat averages about 25g protein per 100g.
• Skin and breading raise calories much faster than protein.
• A palm-sized 120g cooked breast provides roughly 37g of protein.

The Bottom Line

100g of cooked, skinless chicken breast has about 165 calories — alongside 31g of protein, roughly 3. If your build differs from the standard one — an extra sauce, a different size, a swapped side — run it through the Chicken Protein Calculator before you order: thirty seconds there replaces every guess in this article with your exact total.

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