Calories in
bananas, raw
89 kcal per 100 g Bananas, raw contains 89 calories per 100 grams, or about 200 calories per cup, mashed. Per 100 g it provides 1.1 g protein, 22.8 g carbohydrate and 0.3 g fat.
By calories that splits 93% carbohydrate, 4% protein, 3% fat.
Calories in a typical serving
Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.
| Serving | Grams | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup, mashed | 225.0 g | 200 | 2.5 g | 51.4 g | 0.7 g |
| 1 cup, sliced | 150.0 g | 134 | 1.6 g | 34.3 g | 0.5 g |
| 1 extra small (less than 6" long) | 81.0 g | 72 | 0.9 g | 18.5 g | 0.3 g |
| 1 small (6" to 6-7/8" long) | 101.0 g | 90 | 1.1 g | 23.1 g | 0.3 g |
Full nutrition, per 100 g and per cup, mashed
| Nutrient | Per 100 g | Per cup, mashed |
|---|---|---|
| Energy | 89 kcal | 200 kcal |
| Protein | 1.1 g | 2.5 g |
| Total fat | 0.3 g | 0.7 g |
| Saturated fat | 0.1 g | 0.2 g |
| Carbohydrate | 22.8 g | 51.4 g |
| Fibre | 2.6 g | 5.9 g |
| Sugars | 12.2 g | 27.5 g |
| Sodium | 1.0 mg | 2.3 mg |
| Potassium | 358.0 mg | 805.5 mg |
| Calcium | 5.0 mg | 11.3 mg |
| Iron | 0.3 mg | 0.6 mg |
| Vitamin C | 8.7 mg | 19.6 mg |
| Vitamin A | 3.0 µg | 6.8 µg |
| Cholesterol | 0.0 mg | 0.0 mg |
| Water | 74.9 g | 168.5 g |
USDA FoodData Central, SR Legacy (FDC ID 173944). A dash means the nutrient was not measured for this item, which is not the same as zero.
How bananas, raw compares
Among the 92 fruits and fruit juices items on this site, bananas, raw ranks 19 of 92 by calorie density, against a category average of 74 kcal per 100 g — so it is about 20% more calorie-dense than typical for its group.
It carries 1.2 g of protein per 100 calories, so it is not a meaningful protein source.
To burn off one cup, mashed (200 kcal), a 70 kg adult would walk for roughly 41 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.
Questions
How many calories are in bananas, raw?
Bananas, raw contains 89 calories per 100 g, which works out to about 200 calories per cup, mashed. It also provides 1.1 g of protein, 22.8 g of carbohydrate and 0.3 g of fat per 100 g.
What is the macro breakdown of bananas, raw?
By calories, bananas, raw is roughly 93% carbohydrate, 4% protein and 3% fat. That makes it a predominantly carbohydrate-based food.
How long does it take to burn off a cup, mashed?
About 41 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.
Is this figure exact for the bananas, raw I bought?
No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.
Similar foods
Closest in calorie density within fruits and fruit juices.
Source: USDA FoodData Central, SR Legacy — public domain. Full USDA description: "Bananas, raw". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.