How many calories are in 100g of blueberries?

According to USDA FoodData Central, 100 grams of raw blueberries has about 57 calories. That serving also provides roughly 14.5 grams of carbohydrate, 2.4 grams of fiber, 9.9 grams of sugar, 0.7 grams of protein, and 0.3 grams of fat. In other words, blueberries are mostly water and carbs, with very little fat or protein.

For everyday tracking, 100g is a useful benchmark because it is easy to compare against other fruits and recipes. If you are logging food in an app, weighing blueberries is more accurate than estimating by eye, especially when portion size matters.

Blueberries calories by common serving size

A practical way to think about blueberries is by household portions. One cup of raw blueberries is about 148 grams and has about 84 calories. A half-cup serving is about 74 grams and has about 42 calories. These numbers are useful when you are adding berries to yogurt, oatmeal, smoothies, or a snack bowl.

If you are trying to keep calories lower, blueberries give you a lot of volume for the calories. They are naturally sweet, so they can help satisfy dessert cravings without the calorie density of baked goods or candy.

What affects the calorie count?

The biggest factor is whether the blueberries are plain or processed. Fresh and frozen unsweetened blueberries are very similar in calories. Dried blueberries are much more calorie-dense because the water is removed, and sweetened dried blueberries can be even higher due to added sugar.

Cooking usually does not change calories much by itself, but what you add does. Blueberry muffins, jams, sauces, and smoothies can quickly go from a low-calorie fruit to a high-calorie food if they include sugar, oil, or other calorie-rich ingredients.

How blueberries fit into a healthy diet

Blueberries are more than a low-calorie snack. They also provide fiber and useful micronutrients such as vitamin C and vitamin K. Their fiber can help make meals more satisfying, which is one reason fruit often works well in balanced eating plans.

If you track meals and workouts, the key is consistency. Use the raw 100g calorie value for plain blueberries, then adjust only when the product label shows added sugar or if the berries are dried. Fitnit can also help you stay consistent with workouts at home by counting reps and checking form from your phone camera.

Tips

• Weigh blueberries in grams when possible; 100g is the most accurate reference point.
• Use 57 calories per 100g for raw or unsweetened blueberries.
• Check labels for dried or sweetened blueberries, since calories can rise fast.
• Add blueberries to higher-protein foods like Greek yogurt to improve fullness.
• If you are counting calories for fat loss, log the full recipe for smoothies and baked goods, not just the fruit.