Calories in 1 Slice of Banana
1 slice of banana (6 g) has 6 calories. That is 0% of a 2,000 calorie diet.
The calories come from 0 g of protein, 0 g of fat and 1.4 g of carbohydrates, a split of 3% protein, 3% fat and 94% carbs. For comparison, 2 slices of banana has 12 calories. Burning 6 calories takes about 1 minute of brisk walking or 1 minute of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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Banana calories by serving size
Common amounts of banana with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 1 slice | 6 g | 6 | 0 g | 0 g | 1.4 g |
| 2 slices | 12 g | 12 | 0.1 g | 0 g | 2.7 g |
| 50g | 50 g | 49 | 0.4 g | 0.1 g | 11 g |
| 1/2 cup | 75 g | 73 | 0.6 g | 0.2 g | 17 g |
| 100g | 100 g | 97 | 0.7 g | 0.3 g | 23 g |
| 4 oz | 113 g | 110 | 0.8 g | 0.3 g | 26 g |
| 1 banana | 126 g | 122 | 0.9 g | 0.4 g | 29 g |
| 1 cup | 150 g | 146 | 1.1 g | 0.4 g | 34 g |
| 200g | 200 g | 194 | 1.5 g | 0.6 g | 45 g |
| 2 bananas | 252 g | 244 | 1.9 g | 0.7 g | 57 g |
Banana vs similar foods
Calories per 100 g compared with other fruits.
Banana: common questions
How many calories are in 1 slice of banana?
1 slice of banana weighs about 6 g and has 6 calories.
How much protein is in 1 slice of banana?
1 slice of banana has 0 g of protein, which is 0% of the 50 g Daily Value.
How many carbs are in 1 slice of banana?
1 slice of banana has 1.4 g of carbohydrates, including 0.1 g of fiber and 0.9 g of sugars.
How much banana is 100 calories?
100 calories of banana is 103 g, about 3/4 banana.
More about banana
Amount for a target
Weights and conversions
Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2709224. Original description: Banana, raw. Portion weights are USDA household measures.