Small Banana Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 small banana (101g); per 100 g: 18.6g net carbs, 90 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in small banana?
Small Banana — 1 small banana (101g) — has 18.8g net carbs: 20.2g total carbs minus 1.4g fiber, plus 1.2g protein, 0.6g fat, and 91 calories. Per 100g that is 18.6g net carbs (20g total carbs, 1.4g fiber) and 90 calories. That makes small banana moderate in net carbs and about average for the typical fruit, which averages about 17.3g net carbs per 100g. At this carb count, small banana is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
Is small banana keto-friendly?
Small Banana is generally not keto-friendly. 1 small banana (101g) is 18.8g net carbs (20.2g total carbs − 1.4g fiber); per 100g that is 18.6g 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.
Keeping an eye on carbs in small banana?
Small Banana runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 small banana | 18.8g | 20.2g | 1.2g | 91 |
| 100 g (3.5 oz) | 18.6g | 20g | 1.2g | 90 |
| 1 oz (28 g) | 5.2g | 5.6g | 0.3g | 25 |
How many calories are in small banana?
Small Banana — 1 small banana (101g) — has 91 calories, with 1.2g protein, 0.6g fat, and 18.8g net carbs. Per 100g: 90 calories and 18.6g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 90 |
| Total carbs | 20g |
| Net carbs | 18.6g |
| Fiber | 1.4g |
| Sugar | 17.5g |
| Sugar alcohols | 0g |
| Protein | 1.2g |
| Fat | 0.6g |
| Sodium | 0mg |
| Potassium | 0mg |
Source: Open Food Facts (FAIRTRADE). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in small banana?
- Small Banana (1 small banana, 101g) has 20.2g of total carbs and 18.8g of net carbs. Per 100 grams: 20g total, 18.6g net.
- How many net carbs are in small banana?
- Small Banana has 18.8g of net carbs per 1 small banana (101g) — 20.2g total carbs minus 1.4g fiber.
- Is small banana keto-friendly?
- Small Banana is generally not keto-friendly. 1 small banana (101g) is 18.8g net carbs (20.2g total carbs − 1.4g fiber); per 100g that is 18.6g 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 small banana?
- Small Banana (1 small banana, 101g) has 91 calories; that is 90 calories per 100 grams.
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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.