Calories in Chicken breast

Data reviewed 2026-09-08 against USDA FoodData Central (SR Legacy).

A 100 g serving of chicken breast has about 165 kcal, with 31 g of protein, 0 g of carbohydrate (0 g of that fibre) and 3.6 g of fat. The table below gives the full breakdown and the most common portion sizes.

Nutrition per 100 g

NutrientPer 100 g
Calories165 kcal
Protein31 g
Carbohydrate0 g
Fibre0 g
Sugars0 g
Fat3.6 g
Saturated fat1 g
Sodium74 mg
Cholesterol85 mg

Common portions

PortionWeightCalories
cup, chopped or diced140 g231 kcal
unit (yield from 1 lb ready-to-cook chicken)52 g86 kcal
breast, bone and skin removed172 g284 kcal

Log chicken breast in a recipe

To see how chicken breast affects a whole dish, drop it into the recipe calorie calculator with the rest of your ingredients — it totals calories, protein, carbs and net carbs for the recipe, per serving and per 100 g. The methodology shows the exact arithmetic.

Frequently asked questions

How many calories are in chicken breast?

About 165 kcal per 100 g. Portion calories depend on how much you use — see the portions table above for common amounts.

How much protein is in chicken breast?

Chicken breast has roughly 31 g of protein per 100 g.

Is chicken breast keto-friendly?

Its net carbs are about 0 g per 100 g (total carbs 0 g minus 0 g fibre). Whether it fits your day depends on portion size and your carb target.

Related foods

Calories in Chicken thigh · Calories in Ground beef · Calories in Salmon · Calories in Egg · Calories in Firm tofu · Calories in Chickpeas

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