Carbs in 1 banana: 19.7g Net Carbs per 100g

Q: How many net carbs are in 1 banana?

1 banana contains 19.7g net carbs per 100g, calculated by subtracting 1.6g of dietary fiber from 21.3g total carbohydrates.

Q: How many calories are in 1 banana?

1 banana has 91 calories per 100g, with 1.0g protein, 0.2g fat, and 21.3g total carbohydrates.

Complete nutrition facts — total carbs, fiber, sugar, calories, and whether 1 banana fits your keto or low-carb diet.

19.7g Net Carbs

21.3g Total Carbs

91 Calories

1.6g Fiber

Is 1 banana Keto-Friendly?

⚠️ 1 banana is low carb — watch your portion

1 banana has 19.7g net carbs per 100g. While not ultra-low carb, smaller portions can fit a keto or low-carb diet depending on your daily carb budget.

Full Nutrition Facts — per 100g

Net Carbs	19.7g
Total Carbohydrates	21.3g
Dietary Fiber	1.6g
Sugars	11.4g
Protein	1.0g
Total Fat	0.2g
Calories	91

Source: USDA FoodData Central (FDC ID: 2709365)

Net Carbs by Serving Size

50g

9.8g net carbs

10.7g total · 0.8g fiber · 46 cal

100g

19.7g net carbs

21.3g total · 1.6g fiber · 91 cal

150g

29.5g net carbs

32.0g total · 2.4g fiber · 136 cal

200g

39.4g net carbs

42.6g total · 3.2g fiber · 182 cal

Compare: Similar Fruits

Frequently Asked Questions

How many net carbs are in 1 banana?

1 banana contains 19.7g net carbs per 100g, calculated by subtracting 1.6g of dietary fiber from 21.3g total carbohydrates.

Can I eat 1 banana on keto?

1 banana has 19.7g net carbs per 100g, making it borderline for keto. Small portions may fit your daily carb budget — track carefully.

How many calories are in 1 banana?

1 banana has 91 calories per 100g, with 1.0g protein, 0.2g fat, and 21.3g total carbohydrates.

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Medical Disclaimer: This information is for educational purposes only and is not intended as medical advice. Carb and nutrition values are sourced from the USDA FoodData Central database. Consult with a healthcare provider before making significant dietary changes.