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Calories in Whey Protein Powder (100g dry): Protein, Carbs & Fat

Whey Protein Powder has 370 kcal per 100g dry, with 75 g protein, 8 g carbohydrates and 3 g fat.

Last updated: October 3, 2026 · Written and fact-checked by the Calorie Cal team.

Nutrition facts per 100g dry

370 kcal
Calories
75 g
Protein
8 g
Carbs
3 g
Fat

Where the calories come from

Whey Protein Powder is a high-protein food: 84% of its calories come from protein.

Calculated with 4 kcal per gram of protein and carbohydrate and 9 kcal per gram of fat, so the total can differ slightly from the listed calories.

Whey protein powder is made from the liquid left over when milk is turned into cheese, filtered and dried into a concentrated protein. A generic powder like this one is about 75% protein by weight, so most of its calories come from protein. Mixing it with water keeps a shake lean, while milk, banana, oats or peanut butter turn it into a much larger meal.

Typical portion: A typical scoop of about 30 g works out to roughly 110 kcal and 22 g of protein.

Also known as: whey protein, protein powder, whey powder, whey protein concentrate

Calories in other serving sizes

Serving Calories Protein Carbs Fat
100g dry 370 kcal 75 g 8 g 3 g
2 × 100g dry 740 kcal 150 g 16 g 6 g
3 × 100g dry 1,110 kcal 225 g 24 g 9 g

Portion calculator

370 kcal
Calories
75 g
Protein
8 g
Carbs
3 g
Fat

How it fits into your day

One serving (100g dry) is 19% of a 2,000 kcal day and 25% of a 1,500 kcal day. It also gives 75 g of protein, which is 75% of a 100 g daily protein target.

Frequently asked questions

How many calories are in Whey Protein Powder?

Whey Protein Powder has 370 kcal per 100g dry. That serving also has 75 g protein, 8 g carbohydrates and 3 g fat.

How much protein is in Whey Protein Powder?

Whey Protein Powder has 75 g of protein per 100g dry, so 84% of its calories come from protein.

Is Whey Protein Powder good for weight loss?

No single food makes you gain or lose weight. Your total calories over the day and week do. Whey Protein Powder can fit a weight-loss diet when the portion fits your daily calorie target.

How many calories should I eat in a day?

It depends on your age, sex, height, weight and activity level. Most adults need somewhere between 1,600 and 3,000 kcal a day. Use the free calorie calculator to get your personal number.

Sources

Nutrition values are typical averages based on USDA FoodData Central and the Indian Food Composition Tables 2017 (ICMR–National Institute of Nutrition), with recipe-based estimates for mixed dishes.

  1. U.S. Department of Agriculture, Agricultural Research Service. FoodData Central. fdc.nal.usda.gov/
  2. Longvah T, Ananthan R, Bhaskarachary K, Venkaiah K. Indian Food Composition Tables 2017. Hyderabad: National Institute of Nutrition (ICMR); 2017. nin.res.in/ebooks/IFCT2017.pdf

Values are typical averages and vary by recipe, brand and portion size. For packaged foods, check the label. This page is general information, not medical advice.

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