How many carbs are in a banana?
A banana (1 medium) has 27 g of total carbs and 3.1 g of fiber, which is 23.9 g of net carbs. Per 100 g: 22.8 g carbs, 20.2 g net carbs.
Carbs & keto check
Is banana keto? Carbs in a banana
Not keto
Not really. A banana has 23.9 g net carbs per serving (1 medium); 20.2 g per 100 g. That's 119% of a strict 20 g daily keto limit in a single serving.
Net carbs · 1 medium23.9 g
Net carbs · 100 g20.2 g
Total carbs27 g
Fiber3.1 g
Calories105
Protein1.3 g
99 g of banana = a whole 20 g net carb day
Nutrition
Carbs in a banana by serving
Net carbs = total carbs − fiber. Values from the Keto.app food database.
| Serving | Net carbs | Carbs | Fiber | kcal | Protein | Fat |
|---|---|---|---|---|---|---|
| 1 medium (118 g) | 23.9 g | 27 g | 3.1 g | 105 | 1.3 g | 0.4 g |
| 100 g | 20.2 g | 22.8 g | 2.6 g | 89 | 1.1 g | 0.3 g |
| 1 small (101 g) | 20.4 g | 23.1 g | 2.6 g | 90 | 1.1 g | 0.3 g |
| 1 large (136 g) | 27.5 g | 31.1 g | 3.5 g | 121 | 1.5 g | 0.4 g |
| 1 extra small (81 g) | 16.4 g | 18.5 g | 2.1 g | 72 | 0.9 g | 0.3 g |
| 1 serving (118g) | 23.9 g | 27 g | 3.1 g | 105 | 1.3 g | 0.4 g |
| 1 oz yields (18 g) | 3.6 g | 4.1 g | 0.5 g | 16 | 0.2 g | 0.1 g |
From Keto.app data
What keto dieters actually log
Banana has been added to Keto.app food diaries 59,047 times over about 10 years.
Most-logged results for “bananas”
- Banana59,047
- Bananas37,763
- Dole Bananas29,798
- Chiquita Banana11,531
- Banana Pepper4,370
Times logged by Keto.app users, over about 10 years.
FAQ
Banana on keto
Is banana keto friendly?
Not really. A banana has 23.9 g net carbs per serving (1 medium); 20.2 g per 100 g. That's 119% of a strict 20 g daily keto limit in a single serving.
How much banana can I eat on keto?
On a strict 20 g net carb day, 99 g of banana would use your entire carb budget. Most people on keto keep it to a few bites, or skip it.
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