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.

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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.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Blueberries (1/2 Cup)
12.2g
Net carbs
14.9g
Total carbs
2.7g
Fiber
1.4g
Protein
0g
Fat
57
Calories

Values per 100 g.

Is blueberries (1/2 cup) keto-friendly?

Limit it

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

ServingNet carbsTotal carbsCalories
1/2 cup fresh blueberries9g11g42
100 g (3.5 oz)12.2g14.9g57
1 oz (28 g)3.4g4.2g16

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

NutrientAmount (per 100 g)
Calories57
Total carbs14.9g
Net carbs12.2g
Fiber2.7g
Sugar10.8g
Sugar alcohols0g
Protein1.4g
Fat0g
Sodium1mg
Potassium77mg

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.