Calories in chicken breast (raw)
Calories, protein, carbohydrate and fat per 100 g and per serving, from the USDA reference database — plus what actually changes the number on your plate.
Short answer
100 g of chicken breast (raw) contains 120 kcal, with 22.5 g of protein, 0 g of carbohydrate and 2.6 g of fat.
A typical serving — 1 breast, about 200 g — is roughly 240 kcal.
That is a moderate calorie density, in the same range as cooked grains and lean meat.
Nutrition facts
| Nutrient | Per 100 g | 1 breast (200 g) |
|---|---|---|
| Calories | 120 kcal | 240 kcal |
| Protein | 22.5 g | 45 g |
| Carbohydrates | 0 g | 0 g |
| Sugars | 0 g | 0 g |
| Fibre | 0 g | 0 g |
| Fat | 2.6 g | 5.2 g |
| Saturated fat | 0.6 g | 1.1 g |
| Cholesterol | 73 mg | 146 mg |
| Sodium | 45 mg | 90 mg |
| Potassium | 334 mg | 668 mg |
| Calcium | 5 mg | 10 mg |
| Iron | 0.4 mg | 0.7 mg |
| Vitamin C | 0 mg | 0 mg |
| Water | 74 g | 148 g |
Calories per serving
| Serving | Weight | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|---|
| 1 breast | 200 g | 240 | 45 g | 0 g | 5.2 g |
Photograph it instead of looking it up
Wellix identifies chicken breast on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
Calories by weight
Use this table when you know the weight but not the serving:
| Amount | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|
| 25 g | 30 | 5.6 g | 0 g | 0.7 g |
| 50 g | 60 | 11.3 g | 0 g | 1.3 g |
| 100 g | 120 | 22.5 g | 0 g | 2.6 g |
| 150 g | 180 | 33.8 g | 0 g | 3.9 g |
| 200 g | 240 | 45 g | 0 g | 5.2 g |
| 250 g | 300 | 56.3 g | 0 g | 6.6 g |
| 300 g | 360 | 67.5 g | 0 g | 7.9 g |
Where the calories come from
Calories come from three macronutrients: protein and carbohydrate at 4 kcal per gram, fat at 9 kcal per gram. For chicken breast (raw) the split is:
- Protein: 22.5 g × 4 = 90 kcal — 79% of calories
- Carbohydrates: 0 g × 4 = 0 kcal — 0% of calories
- Fat: 2.6 g × 9 = 24 kcal — 21% of calories
- Most of the energy in chicken breast (raw) comes from protein (79% of calories).
- With 22.5 g of protein per 100 g it counts as a high-protein food.
- That is 18.8 g of protein per 100 kcal — a useful number when protein is your target.
- For 200 kcal you can eat about 165 g.
Compare preparations
The same food, prepared differently. Cooking removes water (so calories per 100 g rise), adds fat (so they rise further), or both.
| Preparation | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|
| Chicken breast (roasted, skinless) | 165 | 31 g | 0 g | 3.6 g |
| Chicken breast (raw)this page | 120 | 22.5 g | 0 g | 2.6 g |
| Chicken breast (roasted, with skin) | 197 | 29.8 g | 0 g | 7.8 g |
| Chicken breast (pan-fried, skinless, no batter) | 187 | 33.4 g | 0.5 g | 4.7 g |
What actually changes the number
Raw chicken breast is 120 kcal per 100 g, cooked is 165 — the same chicken, minus about a quarter of its weight in water. Log raw weight against the raw entry or cooked weight against the cooked entry; mixing the two is the most common 30% error in home tracking.
How accurate are these numbers?
The values on this page are reference averages from the USDA FoodData Central database (SR Legacy release), measured on samples of chicken breast as sold and prepared in the United States. Your portion will differ: produce varies by variety and ripeness, meat by cut and trim, and anything cooked by the fat and water it gained or lost.
For most foods the per-100 g figure is reliable to within about 10%. The larger uncertainty is almost always the weight of what is on your plate and the cooking fat you cannot see — the two things worth checking before you worry about the database.
How accurate are AI calorie counting apps? →
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Frequently asked questions
How many calories are in 100 g of chicken breast?
100 g of chicken breast (raw) contains 120 kcal (22.5 g protein, 0 g carbohydrate, 2.6 g fat), according to USDA reference data.
How many calories are in a serving of chicken breast?
A typical serving of chicken breast — 1 breast, about 200 g — has roughly 240 kcal. Weigh your own portion once to see how it compares; serving sizes vary more than the food does.
How much protein is in chicken breast?
Chicken breast (raw): 22.5 g of protein per 100 g, which is high. Foods above about 15–20 g per 100 g, or where protein supplies a third or more of the calories, are usually considered high-protein.
What amount of chicken breast equals 200 kcal?
At 120 kcal per 100 g, about 165 g of chicken breast equals 200 kcal.
Can I track chicken breast by taking a photo?
Yes. A photo calorie app like Wellix identifies chicken breast on the plate and estimates the portion from the image. The estimate is most accurate when you confirm the weight or the count, and tell the app about anything the camera cannot see — cooking oil, butter, dressings and sauces.
Source
Nutrition data: U.S. Department of Agriculture, FoodData Central — SR Legacy, FDC ID 171077: "Chicken, broiler or fryers, breast, skinless, boneless, meat only, raw". Values are per 100 g of edible portion. Serving weights are USDA household measures or typical retail sizes; check the label where one exists. View the USDA record.
Wellix provides general nutrition information and is not medical advice. Nutrition values are reference averages and individual foods vary. Consult a qualified healthcare professional before making significant dietary changes.
Photograph it instead of looking it up
Wellix identifies chicken breast on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
