Blueberries calories per 100g: the quick answer

Raw blueberries contain about 57 calories per 100 grams. In practical terms, 100g is close to a small bowl or about 2/3 to 3/4 cup, though exact volume varies by berry size and how the berries are measured. USDA FoodData Central is the standard reference many nutrition databases use for this value.

For a quick comparison, 100g of blueberries is relatively low in calories because most of the weight comes from water and carbohydrate, not fat. A typical 1-cup serving of blueberries is around 148g, which is about 84 calories.

What’s inside 100g of blueberries

The calorie count is only part of the nutrition picture. In 100g of raw blueberries, you’ll typically get about 14.5g of carbohydrates, 2.4g of fiber, 0.7g of protein, and very little fat. That fiber helps slow digestion and can make blueberries more satisfying than many other sweet snacks.

Blueberries also contribute vitamin C, vitamin K, and plant compounds called polyphenols, including anthocyanins, which give blueberries their blue-purple color. These compounds are studied for their role in overall health, but blueberries should still be viewed as one healthy food within a broader diet.

Are blueberries good for weight loss or maintenance?

Blueberries can be a smart choice if you want a sweet food without a large calorie load. Because 100g is only 57 calories, they can help satisfy a craving for something sweet while keeping your overall intake moderate. They’re especially useful when paired with protein or fat, such as Greek yogurt, cottage cheese, or a handful of nuts.

That said, portions still matter. A large smoothie, trail mix, or dessert topped with blueberries can add up once other ingredients are included. If you track food visually, Fitnit can be useful for logging portion-based meals and keeping your nutrition record consistent with your exercise routine.

How to measure and track blueberry calories accurately

If you want the most accurate count, weigh blueberries in grams. Fresh blueberries can vary in size, and cups are less precise than a kitchen scale. For most people, a simple rule is enough: 100g equals 57 calories, and 1 cup is usually around 84 calories.

Also remember that forms of blueberries can be much more calorie-dense than the raw fruit. Frozen unsweetened blueberries are similar to fresh, but sweetened dried blueberries, pies, muffins, and flavored yogurt blends can contain a lot more added sugar and calories.

Tips

• Use a food scale if you want an exact 100g blueberry serving.
• Pair blueberries with protein, like yogurt or cottage cheese, to make snacks more filling.
• Choose unsweetened frozen blueberries when fresh berries are expensive or out of season.
• Watch for added sugar in dried blueberries, jams, smoothies, and baked goods.
• If you’re logging meals and workouts together, keep portions consistent so your nutrition data stays useful.