Calories and Protein in Chicken Breast
Nutrition data for chicken breast, roasted, meat only, no skin.
Quick answer: 3 ounces (85 g) of chicken breast has about 140 calories, 26 g of protein, 3 g of fat and 0 g of carbohydrate. Per 100 g it has 165 calories and 31 g of protein. These figures are for chicken breast that is roasted, meat only, no skin.
- 140calories
- 26 gprotein
- 3 gfat
- 0 gcarbs
per 3 ounces (85 g)
Serving sizes for chicken breast
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 100 grams | 100 g (3.5 oz) | 165 | 31 g | 3.6 g | 0 g |
| 3 ounces (85 g) | 85 g (3 oz) | 140 | 26 g | 3 g | 0 g |
| 1/2 breast, no skin or bone | 86 g (3 oz) | 142 | 27 g | 3.1 g | 0 g |
| 1 cup, chopped or diced | 140 g (4.9 oz) | 231 | 43 g | 5 g | 0 g |
Weigh chicken after cooking when you can. Cooking drives water out, so cooked meat weighs less than the raw piece it came from, and USDA's 3 ounce serving (85 g) is cooked weight, about the size of a deck of cards. Half a breast without skin or bone is about 86 g.
Full nutrition facts
| Nutrient | Per 100 g | Per 3 ounces (85 g) | % Daily Value* |
|---|---|---|---|
| Calories | 165 | 140 | |
| Total fat | 3.6 g | 3 g | 4% |
| Saturated fat | 1 g | 0.9 g | 4% |
| Cholesterol | 85 mg | 72 mg | 24% |
| Sodium | 74 mg | 63 mg | 3% |
| Total carbohydrate | 0 g | 0 g | 0% |
| Protein | 31 g | 26 g | 53% |
| Potassium | 256 mg | 218 mg | 5% |
| Calcium | 15 mg | 13 mg | 1% |
| Iron | 1 mg | 0.9 mg | 5% |
| Magnesium | 29 mg | 25 mg | 6% |
*Percent Daily Value uses the FDA reference amounts for a 2,000 calorie diet and is calculated for 3 ounces (85 g). Source: USDA FoodData Central, record 171477 (Chicken, broilers or fryers, breast, meat only, cooked, roasted).
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About chicken breast nutrition
Chicken breast is the leaner of the two chicken cuts on this site, with more protein and less fat per 100 g than thigh meat. The numbers below are for cooked breast meat with the skin removed.
- Protein: 26 g in 3 ounces (85 g), about 53 percent of the Daily Value.
How preparation changes the numbers
- Skin, breading and frying oil change the numbers a lot. These figures are for roasted meat only, with no skin.
- Use a food thermometer. FoodSafety.gov lists 165°F as the safe minimum internal temperature for all poultry.
How chicken breast compares
Per 100 g, chicken breast ranks #1 of 30 foods on this site for protein and #25 for fewest calories.
Protein per 100 g
Calories per 100 g
Recipes with chicken breast
Questions about chicken breast
140 calories in 3 ounces (85 g) of chicken breast, or 165 calories per 100 g. These figures are for chicken breast that is roasted, meat only, no skin.
26 g of protein in 3 ounces (85 g) of chicken breast, or 31 g per 100 g. Protein makes up about 75 percent of its calories.
Per 100 g of cooked meat, breast has 31 g of protein and thigh has 25 g. Thigh has more fat: 8.2 g per 100 g versus 3.6 g.
About 27 g of protein in half a cooked breast (86 g), with about 142 calories.
Either works if you use the matching numbers. Raw chicken weighs more than cooked because water cooks out, so a raw weight and a cooked weight are not interchangeable. These figures are for cooked meat.
Related guides
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Sources and method
Nutrient values come from USDA FoodData Central (SR Legacy), record 171477: Chicken, broilers or fryers, breast, meat only, cooked, roasted, retrieved 2026-09-30. Serving weights are USDA household measures, or a simple fraction of one. Brands, growing conditions and cooking method change real-world numbers, so treat every figure as a good estimate. Written and reviewed by Claudio; read how we develop and check our numbers.
