How many calories are in a banana?
Calories in a small, medium or large banana
A medium banana has 105 calories. A small banana has 90 and a large banana has 121.
USDA sizes bananas by length, and the portion table shows the range for each size so you can match yours. The weights are for the peeled fruit, 118 g in a medium banana.
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
Sliced or mashed, by the cup
A cup of sliced banana is 150 g and 134 calories. Mashing packs more fruit into the cup, so a cup of mashed banana is 225 g and 200 calories.
| Portion | Weight | Calories kcal | Protein g | Carbs g | Fat g | Fiber g | Sugar g | Sodium mg | Caffeine mg | Portion source |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 medium banana | 118 g | 105 | 1.3 | 27 | 0.4 | 3.1 | 14.4 | 1.2 | 0 | USDA portion, 1 medium, 7 to 7 7/8 inches long |
| 1 small banana | 101 g | 90 | 1.1 | 23.1 | 0.3 | 2.6 | 12.4 | 1 | 0 | USDA portion, 1 small, 6 to 6 7/8 inches long |
| 1 large banana | 136 g | 121 | 1.5 | 31.1 | 0.4 | 3.5 | 16.6 | 1.4 | 0 | USDA portion, 1 large, 8 to 8 7/8 inches long |
| 1 cup sliced banana | 150 g | 134 | 1.6 | 34.3 | 0.5 | 3.9 | 18.3 | 1.5 | 0 | USDA portion, 1 cup, sliced |
| 1 cup mashed banana | 225 g | 200 | 2.5 | 51.4 | 0.7 | 5.8 | 27.5 | 2.3 | 0 | USDA portion, 1 cup, mashed |
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
Banana nutrition facts
There's very little protein in a banana. If you're tracking protein too, the egg, chicken breast, salmon and ground beef pages list it for those foods. Other fruit, from apples to berries, is in the full list of calorie references.
| Nutrient | 1 medium banana | Per 100 g |
|---|---|---|
| Calories | 105 kcal | 89 kcal |
| Protein | 1.3 g | 1.1 g |
| Carbs | 27 g | 22.8 g |
| Fat | 0.4 g | 0.3 g |
| Fiber | 3.1 g | 2.6 g |
| Sugar | 14.4 g | 12.2 g |
| Sodium | 1.2 mg | 1 mg |
- Calories in eggs
- Calories in chicken breast
- Calories in salmon
- Calories in ground beef
- Calories in pineapple
- Calories in watermelon
- All calorie references
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
Weigh your banana for the closest count
Sizes are ranges, so a scale gives the closest count. Peel the banana, weigh the fruit and enter the grams. For a smoothie, weigh it before it goes in the blender.
No scale nearby? In TrueCal you can just say you had a large banana and review the estimate.
118 g has about 105 calories.
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
How many calories are in 100 g of banana?
100 g of peeled banana has 89 calories. That's just under a small banana, which weighs 101 g.
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
Where do a banana's calories come from?
Almost all of them come from carbs. A medium banana has 27 g of carbs, and 14.4 g of that is sugar. It has 1.3 g of protein and 0.4 g of fat.
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.
Log the portion you ate
Add food from a photo or a sentence, then check the portion before saving.
USDA FoodData Central. Bananas, raw. Source checked September 29, 2026.