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How Many Carbs in 1 Cup (148g) of Blueberries?

17.9g
Net Carbs per 1 Cup (148g)
⚠️ Moderate Carbs
Total carbs: 21.5g  |  Fiber: 3.6g  |  Calories: 84 kcal
17.9g
Net Carbs
84
Calories
1.0g
Protein
0.4g
Fat
Calories84 kcal
Total Carbohydrates21.5g
   Dietary Fiber3.6g
   Sugars14.8g
→ Net Carbs17.9g
Protein1.0g
Total Fat0.4g
Calories57 kcal
Total Carbohydrates14.5g
   Dietary Fiber2.4g
   Sugars10.0g
→ Net Carbs12.1g
Protein0.7g
Total Fat0.3g

The Quick Answer

1 Cup (148g) of Blueberries contains 17.9g net carbs and 84 calories. Net carbs are calculated by subtracting 3.6g of dietary fiber from 21.5g of total carbohydrates. This serving size weighs approximately 148g.

All nutrition data is sourced from the USDA FoodData Central database using raw, fresh blueberries values.

Is 1 Cup (148g) of Blueberries Keto Friendly?

With 17.9g net carbs, 1 Cup (148g) of Blueberries is moderate in carbs. Occasional consumption may fit a low-carb diet if the rest of your day's intake is very low.

Net carbs are what matter on a ketogenic or low-carb diet — not total carbs. Only net carbs raise blood sugar and trigger insulin. Use our Keto Macro Calculator to find your personal daily net carb limit.

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How Net Carbs Are Calculated

Net carbs = Total Carbs − Dietary Fiber. For 1 Cup (148g) of Blueberries: 21.5g − 3.6g = 17.9g net carbs. Fiber is subtracted because it passes through the digestive system unabsorbed and does not raise blood sugar or trigger an insulin response.

Frequently Asked Questions

1 Cup (148g) of Blueberries contains 21.5g total carbohydrates and 17.9g net carbs. Net carbs are calculated by subtracting 3.6g of dietary fiber from the total carbs.
1 Cup (148g) of Blueberries has 84 calories, with 1.0g protein, 0.4g fat, and 21.5g total carbohydrates.
1 Cup (148g) of Blueberries has 17.9g net carbs and is classified as Moderate Carbs. Track this serving carefully against your daily carb limit on keto.
1 Cup (148g) of Blueberries has 17.9g net carbs (21.5g total carbs minus 3.6g fiber). Net carbs are what count toward your daily keto limit.
Blueberries has 14.5g total carbs and 12.1g net carbs per 100g (57 calories). 1 Cup (148g) weighs 148g, which is why it contains 17.9g net carbs for that portion.

Nutrition data sourced from USDA FoodData Central. Serving weight is an average; actual weight may vary slightly.