A typical serving of blueberries (1 cup, 148 g) has about 84 calories. Per 100 g: 57 kcal, 0.7 g protein, 14.5 g carbs, 0.3 g fat. The same 100 g carries 2.4 g of fiber and 10 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 cup | 148 g | 84 kcal |
| 50 berries | 68 g | 39 kcal |
| 100 g | 100 g | 57 kcal |
A cup of blueberries has fewer calories than most single cookies. On the energy-density scale, 57 kcal per 100 g puts blueberries at the low end.
A typical serving (1 cup, 148 g) has about 84 calories, and 100 g has 57 kcal. Calories scale with weight, so double the portion means double the number.
There are 0.7 g of protein in 100 g of blueberries, which works out to about 1 g per serving (1 cup). Treat it as an energy source rather than a protein source.
Sugar comes to 10 g per 100 g, so 1 cup (148 g) delivers roughly 15 g. That sugar is already counted inside the calorie figures on this page.
Every value on this page comes from USDA FoodData Central, entry 171711 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 171711 (SR Legacy). Serving calories are computed from the per-100-g values.
