Blueberries (¼ Cup) Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1/4 cup (37g), 37g; per 100 g: 11.9g net carbs, 57 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in blueberries (¼ cup)?
Blueberries (¼ Cup) — 1/4 cup (37g), 37g — has 4.4g net carbs: 5.3g total carbs minus 0.9g fiber, plus 0.3g protein, 0.1g fat, and 21 calories. Per 100g that is 11.9g net carbs (14.3g total carbs, 2.4g fiber) and 57 calories. That makes blueberries (¼ cup) moderate in net carbs and lower than the typical fruit, which averages about 17.3g net carbs per 100g. With this carb count, blueberries (¼ cup) fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is blueberries (¼ cup) keto-friendly?
Yes, blueberries (¼ cup) can fit a keto diet in moderate portions. 1/4 cup (37g), 37g is 4.4g net carbs (5.3g total carbs − 0.9g fiber); per 100g that is 11.9g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other fruits and meals.
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1/4 cup (37g) | 4.4g | 5.3g | 0.3g | 21 |
| 100 g (3.5 oz) | 11.9g | 14.3g | 0.8g | 57 |
| 1 oz (28 g) | 3.3g | 4g | 0.2g | 16 |
How many calories are in blueberries (¼ cup)?
Blueberries (¼ Cup) — 1/4 cup (37g), 37g — has 21 calories, with 0.3g protein, 0.1g fat, and 4.4g net carbs. Per 100g: 57 calories and 11.9g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 57 |
| Total carbs | 14.3g |
| Net carbs | 11.9g |
| Fiber | 2.4g |
| Sugar | 9.7g |
| Sugar alcohols | 0g |
| Protein | 0.8g |
| Fat | 0.3g |
| Sodium | 3mg |
| Potassium | 76mg |
Source: Manufacturer-reported values (fruits). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in blueberries (¼ cup)?
- Blueberries (¼ Cup) (1/4 cup (37g), 37g) has 5.3g of total carbs and 4.4g of net carbs. Per 100 grams: 14.3g total, 11.9g net.
- How many net carbs are in blueberries (¼ cup)?
- Blueberries (¼ Cup) has 4.4g of net carbs per 1/4 cup (37g), 37g — 5.3g total carbs minus 0.9g fiber.
- Is blueberries (¼ cup) keto-friendly?
- Yes, blueberries (¼ cup) can fit a keto diet in moderate portions. 1/4 cup (37g), 37g is 4.4g net carbs (5.3g total carbs − 0.9g fiber); per 100g that is 11.9g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other fruits and meals.
- How many calories are in blueberries (¼ cup)?
- Blueberries (¼ Cup) (1/4 cup (37g), 37g) has 21 calories; that is 57 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.