Food weight and portion guide
Roasted chicken breast: calories and portions
Chicken, broilers or fryers, breast, meat only, cooked, roasted
The reference is roasted skinless breast meat. Raw and cooked weights are not interchangeable.
This reference is for cooked skinless chicken breast. Weigh the edible meat without bone; raw, fried and sauced chicken require different entries.
Calculate your portion
Enter 0.1–5,000 g. Exclude inedible skin, stones and bones.
for 150 g:
- Calories
- 247.5 kcal
- Protein
- 46.5 g
- Carbohydrate
- 0 g
- Fat
- 5.4 g
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Nutrition by weight
| Weight | Calories | Protein | Carbohydrate | Fat |
|---|---|---|---|---|
| 100 g | 165 | 31 g | 0 g | 3.6 g |
| 150 g | 247.5 | 46.5 g | 0 g | 5.4 g |
| 300 g | 495 | 93.1 g | 0 g | 10.7 g |
Values are scaled from the per-100-g data and rounded. “Calories” means kilocalories (kcal).
Frequently asked questions about Roasted chicken breast
How much protein is in 100 g?
This reference contains 165 kcal and 31.02 g of protein per 100 g. A 120 g portion provides about 198 kcal and 37.2 g of protein.
Can I enter raw chicken weight?
Use cooked weight with this cooked-food record. Cooking changes water content, so there is no single raw-to-cooked conversion for every method.
How to calculate a homemade recipe using its finished weight
Tips for weighing and logging
Exclude bones and account for skin, oil and sauce separately.
To calculate manually, multiply your portion weight in grams by 165 and divide by 100. For example, 150 g provides approximately 247.5 kcal.
When logging a photo, check the food, cooking method and estimated portion before saving. A photograph cannot reliably show hidden oil or exact weight.
Sources and calculation method
The record below provides values per 100 g of edible food. One reference variety or brand does not represent every product.Library method and limitations
- USDA FoodData Central — SR Legacy — Chicken, broilers or fryers, breast, meat only, cooked, roasted · FDC ID: 171477 · SR Legacy Collection, April 2018
Data review and calculation: October 2, 2026. Complete guide: October 13, 2026. Author: Avocado editorial team. This guide supports food logging; it does not replace personalised advice from a registered dietitian.