Carbs in Medium Sized Banana

Keto-friendly

Medium Sized Banana (per 100 g) contains 0.3g total carbs, 0.3g net carbs, 9.8g fat, 12.7g protein, and 140 calories.

Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

Medium Sized Banana
0.3g
Net carbs
0.3g
Total carbs
0g
Fiber
12.7g
Protein
9.8g
Fat
140
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
100 g (3.5 oz)0.3g0.3g140
1 oz (28 g)0.1g0.1g39

Nutrition facts

NutrientAmount (per 100 g)
Calories140
Total carbs0.3g
Net carbs0.3g
Fiber0g
Sugar0.3g
Sugar alcohols0g
Protein12.7g
Fat9.8g
Sodium310mg
Potassium0mg

Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in medium sized banana?
Medium Sized Banana has 0.3g of total carbs and 0.3g of net carbs per 100 grams.
How many net carbs are in medium sized banana?
Medium Sized Banana has 0.3g of net carbs per 100 grams (total carbs 0.3g minus 0g fiber).
Is medium sized banana keto-friendly?
Yes — with 0.3g net carbs per 100g, medium sized banana fits a ketogenic diet in normal portions.
How many calories are in medium sized banana?
Medium Sized Banana has 140 calories per 100 grams.

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