Calories in a Banana: Small, Medium, Large (Chart)
How many calories are in a banana? A medium banana has about 105 kcal. See calories, carbs, sugar and fiber by size, plus ripe vs. green bananas.
By Ayoub Farid · · 2 min read
Quick answer: a medium banana (about 118 g, 7–8 inches long) has roughly 105 calories, 27 g of carbohydrates, 3 g of fiber and just over 1 g of protein.
Banana calories by size
| Size | Weight (peeled) | Calories |
|---|---|---|
| Extra small (under 6") | ~81 g | ~72 kcal |
| Small (6–7") | ~101 g | ~90 kcal |
| Medium (7–8") | ~118 g | ~105 kcal |
| Large (8–9") | ~136 g | ~121 kcal |
| Extra large (9"+) | ~152 g | ~135 kcal |
| Per 100 g | 100 g | ~89 kcal |
Values are typical USDA figures; individual bananas vary.
Nutrition in a medium banana
- Calories: ~105
- Carbohydrates: ~27 g (about 14 g sugars)
- Fiber: ~3 g
- Protein: ~1.3 g
- Fat: ~0.4 g
- Potassium: ~420 mg
Does ripeness change the calories?
Not meaningfully. As a banana ripens, starch turns into sugar, so a green banana has more resistant starch and a spotty one tastes sweeter, but total calories stay about the same.
Banana in common foods
- 1 cup sliced banana (150 g): ~134 kcal
- Banana with 1 tbsp peanut butter: ~200 kcal. See calories in peanut butter
- Dried banana chips (30 g): ~150 kcal, because they're often fried in oil
- Banana bread slice: often 200–350 kcal depending on recipe and size
Are bananas good for weight loss?
A banana is a filling, portable snack for around 100 kcal. It's mostly carbs, so pairing it with protein (Greek yogurt, a few almonds) keeps you fuller longer. See low-calorie snacks and high-protein snacks.
Quick banana snacks and meals
- Banana + Greek yogurt: about 205 kcal and 18 g protein.
- Frozen banana "nice cream": blend a frozen banana with a splash of milk (about 120 kcal).
- Pre-workout: a banana 30–60 minutes before training is a common, easy-to-digest choice.
- Oatmeal topping: half a banana sweetens oats without added sugar. See calories in oatmeal.
Portion without a scale
A medium banana is about 7–8 inches long. Many supermarket bananas are large (8–9 inches, ~120 kcal).
Track it with a photo
Bananas are one of the easiest foods for AI to recognize. Snap it with Nutora and adjust the size if yours is small or extra large. More food guides: calories in an apple, calories in grapes.
Frequently asked questions
How many calories are in one banana?
A medium banana has about 105 calories. Small bananas are around 90 and large ones around 120.
How many calories are in half a banana?
About 50–55 calories for half a medium banana.
Is a banana a good pre-workout snack?
Yes. Its easily digested carbs provide quick energy for many people.
How much sugar is in a banana?
A medium banana has about 14 g of natural sugar.
Track it with a photo
Snap your meal, see the calories
Nutora's AI estimates calories, protein, carbs and fat from a photo of your plate and tracks them against your daily goal. Download on iPhone and iPad with a 3-day free trial.
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