If you’re looking up 100 g blueberries calories, the short answer is about 57 calories for raw blueberries. That makes them a low-calorie, nutrient-dense fruit choice that fits easily into most eating plans.
The exact calorie count can shift a little depending on the variety and whether the berries are fresh, frozen, dried, or sweetened. This guide breaks down the numbers, the nutrition behind them, and how to use blueberries in real meals without guessing.
How many calories are in 100 g of blueberries?
According to USDA FoodData Central, 100 grams of raw blueberries contains about 57 calories. That serving also provides roughly 14.5 grams of carbohydrate, 2.4 grams of fiber, 0.7 grams of protein, and 0.3 grams of fat. In other words, most of the calories come from natural fruit sugars and carbs, not fat.
For everyday portions, 100 g is a little less than 3/4 cup of blueberries. A common 1-cup serving is closer to 148 grams, which works out to about 84 calories. If you’re tracking intake, weighing the berries is more accurate than estimating by volume.
Why blueberries are a smart low-calorie fruit
Blueberries are calorie-light compared with many snack foods, but they still bring useful nutrients. They’re a source of fiber, vitamin C, vitamin K, and plant compounds called anthocyanins, which give blueberries their blue-purple color. These compounds are one reason blueberries are often included in research on heart and metabolic health.
Because blueberries are naturally sweet and high in water, they can satisfy a sweet craving without a large calorie load. That makes them useful for weight management, pre-workout snacks, or as a topping for yogurt, oatmeal, or cottage cheese.
Fresh, frozen, dried, and sweetened blueberries
Fresh and plain frozen blueberries are very close nutritionally, so their calorie counts are usually similar. Frozen berries are a good option when fresh berries are expensive or out of season, as long as they are unsweetened.
Dried blueberries are a different story: removing water makes the calories much more concentrated. Some dried blueberries also contain added sugar or oil, which raises calories further. Always check the label if you’re using dried or sweetened blueberries in trail mix, baking, or cereal.
Easy ways to portion blueberries accurately
If your goal is calorie tracking, the simplest method is to weigh blueberries in grams. A food scale removes guesswork, especially when you use berries in smoothies, snack bowls, or recipes.
If you’re also tracking workouts, Fitnit can help keep your training consistent with automatic rep counting and AI-powered form analysis, which is useful when you want your nutrition and exercise habits to stay aligned. It’s also handy for at-home workouts since you only need your phone.
Tips
- Weigh blueberries in grams if you want the most accurate calorie count.
- Choose plain frozen blueberries when fresh ones are pricey or out of season.
- Watch dried blueberry labels for added sugar and higher calorie density.
- Use blueberries to add volume and sweetness to yogurt, oats, or smoothies without many calories.
- Pair berries with protein or healthy fat if you want a more filling snack.
Sources
- FoodData Central — USDA
- Blueberries: A Small Fruit With Big Nutritional Value — Harvard Health Publishing
- Blueberries — Mayo Clinic
- PubMed — National Library of Medicine
- Vitamin C - Consumer Fact Sheet — NIH Office of Dietary Supplements
Frequently Asked Questions
How many calories are in 100 g of blueberries?
About 57 calories for raw blueberries.
How many blueberries is 100 g?
It’s roughly 3/4 cup, depending on berry size.
Are frozen blueberries the same calories as fresh?
Plain frozen blueberries are usually very similar in calories to fresh blueberries.
Do blueberries help with weight loss?
They can, mainly because they’re low in calories and high in water and fiber, which may help you feel full.
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