Blueberries (1/2 Cup) Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1/2 cup (74g); per 100 g: 11.8g 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 (1/2 cup)?
Blueberries (1/2 Cup) — 1/2 cup (74g) — has 8.7g net carbs: 10.5g total carbs minus 1.8g fiber, plus 0.5g protein, 0g fat, and 42 calories. Per 100g that is 11.8g net carbs (14.2g total carbs, 2.4g fiber) and 57 calories. That makes blueberries (1/2 cup) moderate in net carbs and lower than the typical fruit, which averages about 17.3g 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 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is blueberries (1/2 cup) keto-friendly?
Blueberries (1/2 Cup) is borderline for keto — it works only in small portions. 1/2 cup (74g) is 8.7g net carbs (10.5g total carbs − 1.8g fiber); per 100g that is 11.8g 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.
Keeping an eye on carbs in blueberries (1/2 cup)?
Blueberries (1/2 Cup) runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1/2 cup | 8.7g | 10.5g | 0.5g | 42 |
| 100 g (3.5 oz) | 11.8g | 14.2g | 0.7g | 57 |
| 1 oz (28 g) | 3.3g | 4g | 0.2g | 16 |
How many calories are in blueberries (1/2 cup)?
Blueberries (1/2 Cup) — 1/2 cup (74g) — has 42 calories, with 0.5g protein, 0g fat, and 8.7g net carbs. Per 100g: 57 calories and 11.8g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 57 |
| Total carbs | 14.2g |
| Net carbs | 11.8g |
| Fiber | 2.4g |
| Sugar | 9.5g |
| Sugar alcohols | 0g |
| Protein | 0.7g |
| 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) (1/2 cup, 74g) has 10.5g of total carbs and 8.7g of net carbs. Per 100 grams: 14.2g total, 11.8g net.
- How many net carbs are in blueberries (1/2 cup)?
- Blueberries (1/2 Cup) has 8.7g of net carbs per 1/2 cup (74g) — 10.5g total carbs minus 1.8g fiber.
- Is blueberries (1/2 cup) keto-friendly?
- Blueberries (1/2 Cup) is borderline for keto — it works only in small portions. 1/2 cup (74g) is 8.7g net carbs (10.5g total carbs − 1.8g fiber); per 100g that is 11.8g 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) (1/2 cup, 74g) has 42 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.