Carbs in 100g blueberries: the numbers

According to USDA FoodData Central, 100 grams of raw blueberries provide about 14.5 grams of carbohydrate, 2.4 grams of fiber, and 10.0 grams of total sugars. That means the net carb amount is roughly 12 grams after subtracting fiber.

For context, 100 grams is a little less than 3/4 cup of fresh blueberries. A typical cup of blueberries is heavier than 100 grams, so if you’re tracking macros, it helps to weigh the fruit instead of estimating by volume.

How blueberries fit into a low-carb or balanced diet

Blueberries are higher in carbs than strawberries or raspberries, but they are still a nutrient-dense fruit. Their carbs come with water, fiber, and micronutrients, which can make them more satisfying than many processed snacks.

If you’re watching blood sugar or total carbohydrate intake, portion size matters most. A small handful can fit into many meal plans, while larger bowls can add up quickly. People with diabetes or insulin resistance should consider pairing blueberries with protein or fat, such as yogurt, nuts, or cottage cheese, to slow digestion and improve satiety.

Why the carb count can change a little

The carb count for blueberries is usually based on raw, unsweetened berries. Frozen blueberries are often very similar if nothing is added, but sweetened frozen berries, canned blueberries, dried blueberries, and blueberry products such as jams or muffins can have much more carbohydrate per serving.

Ripeness can also affect sugar slightly. Very ripe berries may taste sweeter, but the difference in total carbs is usually small compared with changes caused by added sugar or a larger portion.

Practical ways to track blueberry carbs

If you count macros, use weight when possible: 100 g is the cleanest reference point. For home use, check the package if you buy frozen berries, and compare labels carefully because serving sizes can differ a lot.

If you log meals by photo, Fitnit can help estimate portions more consistently, and its AI form analysis can support workout technique while you stay on top of nutrition and training at home.

Tips

• Weigh blueberries if you want the most accurate carb count; 100 g is the best benchmark.
• Choose unsweetened fresh or frozen blueberries when possible to avoid added sugar.
• Pair blueberries with protein or fat if you want steadier energy and better fullness.
• Watch serving size in smoothies, muffins, dried fruit, and jams because carbs climb fast.
• Use the label on frozen or packaged berries, since processing can change the carb total.