Carbs in Blueberries (1/2 Cup)
How many carbs are in blueberries (1/2 cup)?
Blueberries (1/2 Cup) has 12.2g net carbs per 100g — 14.9g total carbs minus 2.7g fiber — plus 1.4g protein, 0g fat, and 57 calories. 1/2 cup fresh blueberries (74g) works out to about 9g net carbs and 42 calories. That makes blueberries (1/2 cup) moderate in net carbs and about average for the typical fruit, which averages about 17.4g net carbs per 100g. At this carb count, blueberries (1/2 cup) is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Values per 100 g.
Is blueberries (1/2 cup) keto-friendly?
Blueberries (1/2 Cup) is borderline for keto — it works only in small portions. It has 12.2g net carbs per 100g (14.9g total carbs − 2.7g fiber). A typical serving — 1/2 cup fresh blueberries (74g) — is about 9g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1/2 cup fresh blueberries | 9g | 11g | 1g | 42 |
| 100 g (3.5 oz) | 12.2g | 14.9g | 1.4g | 57 |
| 1 oz (28 g) | 3.4g | 4.2g | 0.4g | 16 |
How many calories are in blueberries (1/2 cup)?
Blueberries (1/2 Cup) has 57 calories per 100g. 1/2 cup fresh blueberries (74g) has about 42 calories. That's alongside 1.4g protein, 0g fat, and 12.2g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 57 |
| Total carbs | 14.9g |
| Net carbs | 12.2g |
| Fiber | 2.7g |
| Sugar | 10.8g |
| Sugar alcohols | 0g |
| Protein | 1.4g |
| Fat | 0g |
| Sodium | 1mg |
| Potassium | 77mg |
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 (1/2 cup)?
- Blueberries (1/2 Cup) has 14.9g of total carbs and 12.2g of net carbs per 100 grams.
- How many net carbs are in blueberries (1/2 cup)?
- Blueberries (1/2 Cup) has 12.2g of net carbs per 100 grams (total carbs 14.9g minus 2.7g fiber).
- Is blueberries (1/2 cup) keto-friendly?
- Blueberries (1/2 Cup) is borderline for keto — it works only in small portions. It has 12.2g net carbs per 100g (14.9g total carbs − 2.7g fiber). A typical serving — 1/2 cup fresh blueberries (74g) — is about 9g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in blueberries (1/2 cup)?
- Blueberries (1/2 Cup) has 57 calories per 100 grams.
- How many carbs are in 1/2 cup fresh blueberries?
- 1/2 cup fresh blueberries (74g) has about 9g net carbs, 11g total carbs, and 42 calories.
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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.



