Chicken breast calories depend mostly on portion size and cooking method. A useful reference is about 165 calories per 100 g of cooked skinless chicken breast, while a medium breast can land around 280 calories. Because the protein is high and the fat stays relatively low, chicken breast is one of the easiest foods to fit into a practical meal plan when portions are logged clearly.

In this article
Part 1. Chicken Breast Calories by Portion
A practical estimate is about 165 calories per 100 g cooked, roughly 200 calories for a small breast, and about 280 calories for a medium breast. Larger pieces or oil-heavy preparation can push the number higher than many users expect.
| Portion | Calories | Notes |
|---|---|---|
| 100 g cooked chicken breast | 165 kcal | Useful standard reference |
| 1 small breast | About 200 kcal | Often around 120 g cooked |
| 1 medium breast | About 280 kcal | Common meal-size serving |
Part 2. Nutrition Facts for Chicken Breast
Per 100 g cooked, chicken breast provides about 31 g protein, 0 g carbs, 3.6 g fat, and modest sodium before seasoning. That makes it a protein-dense option, but sauces, marinades, and breading can change the overall nutrition quickly.
Part 3. Grilled vs Baked vs Fried Chicken Breast
Grilled and baked chicken breast are usually easier to estimate because the calories come mostly from the meat itself. Fried chicken breast can rise much higher because oil and breading add fat and carbs that are easy to overlook when logging only the portion of chicken.
Part 4. How to Track Chicken Breast with CalBye
- Log by cooked weight when possible for the most realistic estimate.
- Add sauces, breading, and oil separately instead of treating them as part of plain chicken.
- Use a slightly higher estimate for restaurant chicken because portions and added fat are often larger.
- Use CalBye to keep repeated chicken meals consistent and easier to compare over time.
Part 5. FAQs About Chicken Breast Calories
- How many calories are in one chicken breast?
A medium cooked chicken breast is often around 280 calories, but size changes the total. - Is chicken breast high in protein?
Yes, chicken breast is one of the leaner high-protein foods and is commonly used in meal plans. - Does fried chicken breast have more calories?
Usually yes, breading and oil can raise the calorie total noticeably. - Can chicken breast fit a weight-loss diet?
Yes, especially when it is grilled, baked, or air fried and portions are tracked.