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Chicken breast calories and nutrition facts
100 grams of chicken breast contains 165 calories, with 31 g of protein, 0 g of carbohydrate and 3.6 g of fat. Most of its calories come from protein.
Skinless chicken breast is the reference lean protein: over 80% of its calories come from protein, which is why it anchors so many training diets. Its blandness is a feature — it takes any marinade without adding meaningful calories, as long as the marinade stays sensible. Weigh it cooked and remember: 100 g raw shrinks to roughly 70-75 g cooked.
Where the calories come from
Protein 79% Carbs 0% Fat 21%
How chicken breast compares
Per 100 g, against the closest meat & poultry in this database.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Chicken breast | 165 kcal | 31 g | 0 g | 3.6 g |
| Elk loin, broiled | 167 kcal | 31 g | 0 g | 3.8 g |
| Elk tenderloin, broiled | 162 kcal | 30.8 g | 0 g | 3.4 g |
| Caribou, roasted | 167 kcal | 29.8 g | 0 g | 4.4 g |
| Ostrich, inside strip, cooked | 164 kcal | 29.4 g | 0 g | 4.3 g |
Same food, different preparation
| Preparation | Calories | Protein | Fat |
|---|---|---|---|
| Chicken breast (typical) | 165 kcal | 31 g | 3.6 g |
| Fried chicken breast (fried) | 153 kcal | 27.9 g | 4.5 g |
Per 100 g. Water loss in cooking concentrates calories; added fat in frying adds its own.
Nutrition facts for chicken breast
| Nutrient | Per 100 g | Per 1 cooked breast half |
|---|---|---|
| Calories | 165 kcal | 198 kcal |
| Protein | 31 g | 37 g |
| Carbohydrate | 0 g | 0 g |
| Fat | 3.6 g | 4 g |
| Fiber | 0 g | 0 g |
| Sugar | 0 g | 0 g |
| Saturated fat | 1 g | 1 g |
| Salt | 0.2 g | 0 g |
Print an EU-style nutrition label for chicken breast — per 100 g and per portion.
Vitamins and minerals in chicken breast
Per 100 g, highest share of the Daily Value first. %DV = the adult Daily Value (FDA reference). USDA reference data — not medical advice.
| Nutrient | Per 100 g | %DV |
|---|---|---|
| Niacin (B3) | 13.7 mg | 86% |
| Selenium | 27.6 µg | 50% |
| Vitamin B6 | 0.6 mg | 35% |
| Phosphorus | 228 mg | 18% |
| Choline | 85.3 mg | 16% |
| Vitamin B12 | 0.34 µg | 14% |
| Zinc | 1 mg | 9% |
| Riboflavin (B2) | 0.11 mg | 8% |
See the richest foods per nutrient in the nutrient toplists.
Calories in common chicken breast servings
How many calories in a portion of chicken breast — reference serving estimates with the gram weight shown.
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 100 g (100 g) | 165 kcal | 31 g | 0 g | 4 g |
| 1 cup, chopped or diced (140 g) | 231 kcal | 43 g | 0 g | 5 g |
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Related guides
Frequently asked questions
How many calories are in chicken breast?
Chicken breast has 165 calories per 100 grams. A typical serving of 1 cooked breast half (120 g) has about 198 calories.
How much protein is in chicken breast?
Chicken breast contains 31 g of protein per 100 g, or about 37 g per 1 cooked breast half.
Is chicken breast low in carbs?
Yes by the numbers: Chicken breast has 0 g of carbohydrate per 100 g. People following low-carb or keto approaches often include foods in this range — portion size and your own plan still decide.
Is chicken breast a good source of protein?
Chicken breast provides 31 g of protein per 100 g — about 79% of its calories come from protein.
Are these chicken breast calories exact?
No. These are per-100-gram reference values from the USDA FoodData Central SR Legacy source family. Portion size, ripeness, cut and cooking method all change the real number, so treat them as an estimate and log your own portion.
Related foods
Source: USDA FoodData Central SR Legacy #171477 (2018-04 release). US Government work — public domain in the United States. Reference values per 100 g edible portion.
