Carbs in ¼ Cup Blueberries
How many carbs are in ¼ cup blueberries?
¼ Cup Blueberries — ¼ cup (37g) — has 4.5g net carbs: 5.4g total carbs minus 0.9g fiber, plus 0.3g protein, 0.1g fat, and 21 calories. Per 100g that is 12.1g net carbs (14.5g total carbs, 2.4g fiber) and 57 calories. That makes ¼ cup blueberries moderate in net carbs and lower than the typical fruit, which averages about 17.3g net carbs per 100g. At this carb count, ¼ cup blueberries is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.
Keeping an eye on carbs in ¼ cup blueberries?
¼ Cup Blueberries runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per ¼ cup (37g); per 100 g: 12.1g net carbs, 57 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
Related guide: Lowest-carb berries for keto, ranked
Is ¼ cup blueberries keto-friendly?
¼ Cup Blueberries is borderline for keto — it works only in small portions. ¼ cup (37g) is 4.5g net carbs (5.4g total carbs − 0.9g fiber); per 100g that is 12.1g 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 |
|---|---|---|---|---|
| ¼ cup | 4.5g | 5.4g | 0.3g | 21 |
| 100 g (3.5 oz) | 12.1g | 14.5g | 0.7g | 57 |
| 1 oz (28 g) | 3.4g | 4.1g | 0.2g | 16 |
How many calories are in ¼ cup blueberries?
¼ Cup Blueberries — ¼ cup (37g) — has 21 calories, with 0.3g protein, 0.1g fat, and 4.5g net carbs. Per 100g: 57 calories and 12.1g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 57 |
| Total carbs | 14.5g |
| Net carbs | 12.1g |
| Fiber | 2.4g |
| Sugar | 9.9g |
| Sugar alcohols | 0g |
| Protein | 0.7g |
| Fat | 0.3g |
| Sodium | 1mg |
| Potassium | 77mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in ¼ cup blueberries?
- ¼ Cup Blueberries (¼ cup, 37g) has 5.4g of total carbs and 4.5g of net carbs. Per 100 grams: 14.5g total, 12.1g net.
- How many net carbs are in ¼ cup blueberries?
- ¼ Cup Blueberries has 4.5g of net carbs per ¼ cup (37g) — 5.4g total carbs minus 0.9g fiber.
- Is ¼ cup blueberries keto-friendly?
- ¼ Cup Blueberries is borderline for keto — it works only in small portions. ¼ cup (37g) is 4.5g net carbs (5.4g total carbs − 0.9g fiber); per 100g that is 12.1g 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 ¼ cup blueberries?
- ¼ Cup Blueberries (¼ cup, 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.