- Calk — the calorie counter you don't have to live in/
- Calories in everyday food/
- How many calories are in a protein shake?/
Same-portion calorie comparison
How many calories are in a protein shake?
Protein powder may be the smallest part of a smoothie once milk, banana and peanut butter are added. Build the complete drink in Calk.

Same 330 g portion, different choices: type of protein, liquid base, add-ins, ready drink.
How the liquid and add-ins change a protein shake
In these two examples, the changes are: type of protein — whey isolate → whey concentrate, liquid base — water → whole milk, add-ins — added: banana, add-ins — added: peanut butter.
Lower calorie
107 kcal
330 g
33 kcal per 100 g
higher vs lower calorie
+235%
Higher calorie
358 kcal
330 g
108 kcal per 100 g

- Protein isolate in water comes to about 32 kcal per 100 g here. Whole milk adds its fat and sugar.
- Banana and peanut butter add more calories than the powder itself, bringing the smoothies to 83–105 kcal per 100 g.
- One is a light protein drink. The other has enough additions to be closer to a liquid meal.
Whey, casein, protein smoothie and mass-gainer calories
Calculate calories and macros for whey isolate or concentrate, casein, ready-to-drink protein, a protein smoothie or mass gainer.
Protein shakeWhey shakeCasein shakeMass gainerProtein smoothieReady-to-drink proteinChocolate protein shakeYogurt berry shake
More calorie comparisons for protein shakes
Learn more
Questions about calories in protein shakes
How many calories are in a whey shake with water or milk?
The two versions shown in Calk contain 107 and 358 kcal per 330 g. Protein powder may be the smallest part of a smoothie once milk, banana and peanut butter are added.
Why is a protein smoothie with whole milk, banana and peanut butter higher in calories than isolate mixed with water?
Protein isolate in water comes to about 32 kcal per 100 g here. Whole milk adds its fat and sugar. Banana and peanut butter add more calories than the powder itself, bringing the smoothies to 83–105 kcal per 100 g.
How do I calculate my own protein shake?
Open Protein in Calk and enter the powder and scoop size, liquid, banana or other fruit, nut butter and the volume you drank.

