Green banana calories come to 105 for one medium fruit (118 g) and 89 per 100 g. Nearly all of it is carbohydrate: 93% of the calories come from carbs, with just 1.3 g protein per medium banana. Size is the lever that moves the total, from 90 for a small one to 121 for a large one.
105kcal
1 medium banana · 118 g, raw, unripe
4%protein
1.3 gProtein
27 gCarbs
0.4 gFat
How to burn off 105 kcal
—Walking, brisk
—Jogging
—Cycling, moderate
—Swimming
Skip the math. BodyPal counts these calories from your steps and workouts automatically.
Nutrition facts
Raw, unripe · per 118 g
Calories
105 kcal
Protein
1.3 g
Carbohydrate
27 g
Fat
0.4 g
Saturated fat
0.1 g
Cholesterol
0 mg
Sodium
1 mg
Potassium
422 mg
Iron
0.3 mg
Source: USDA FoodData Central
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Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Green banana: calories, protein and sodium by serving
Percent of daily value uses the FDA reference of 2,000 kcal a day.
Serving
kcal
Protein
Carbs
Fat
Sodium
% DV kcal
1 medium (118 g)
105
1.3 g
27 g
0.4 g
1 mg
5%
1 large (136 g)
121
1.5 g
31.1 g
0.4 g
1 mg
6%
1 small (101 g)
90
1.1 g
23.1 g
0.3 g
1 mg
4%
100 g
89
1.1 g
22.8 g
0.3 g
1 mg
4%
3 × 1 medium (118 g)
315
3.9 g
4 mg
5 × 1 medium (118 g)
525
6.4 g
6 mg
One medium green banana is a 105-calorie snack
A medium green banana weighs 118 g and brings 105 calories, about 5% of the daily value for calories. Size moves that number more than most people expect. A small one at 101 g lands at 90 calories, while a large one at 136 g reaches 121. That is the difference between a light bite and a fruit that counts as a real snack.
Multiples add up in a straight line because there is nothing else in the peel. Two medium bananas come to 210 calories, three reach 315, and five, roughly 590 g of fruit, total 525. If you cook green bananas as a starchy side, it is easy to work through three or more without noticing.
The simplest fix is to weigh one fruit once. After that you can judge small, medium and large by eye, and the 100 g reference of 89 calories lets you scale any odd size you pick up at the store.
Carbs supply 93% of the calories
Almost every calorie in a green banana comes from carbohydrate. The split is 93% carbs, 4% protein and 3% fat. Per 100 g that works out to 22.8 g carbs, 1.1 g protein and 0.3 g fat, so this is a fuel food, not a filling protein snack.
In a medium fruit you get 27 g carbs, 1.3 g protein and 0.4 g fat. The protein covers just 3% of the daily value. Even five medium bananas deliver only 6.4 g protein, which shows how little this fruit contributes on that front.
Fat is close to zero, with 0.1 g saturated fat per 100 g and 0 mg cholesterol. If you track macros, log a green banana almost entirely under carbs and plan your protein elsewhere in the meal.
Fiber and potassium matter more than sodium here
A medium green banana supplies 3.1 g fiber against a daily value of 28 g, and a large one gives 3.5 g. That is modest but real fiber from a single piece of fruit with no added ingredients.
The sugar row needs context. The numbers on this page come from the USDA row "Bananas, raw", which does not split bananas by ripeness, so the 14.4 g sugars per medium fruit and 12.2 g per 100 g are the general raw banana figures. That is why the green and ripe banana pages show the same values. Treat the sugar line as the standard banana reference rather than a reading taken only from unripe fruit.
Sodium is a non-issue: 1 mg per fruit, or 0% of the daily value. Potassium is the mineral that stands out, at 358 mg per 100 g against a daily value of 4700 mg.
Pair it with protein to make a fuller snack
Because a green banana is mostly carbohydrate with very little protein or fat, it works best next to foods that fill those gaps. Greek yogurt, eggs, cottage cheese or a spoon of nut butter turn a 105-calorie fruit into a snack with more staying power. Cooked green banana also sits well beside beans, fish or chicken as the starch on the plate.
Green banana also shows up as flour and dough. Products like Let's Do Organic Organic Green Banana Flour, Just About Foods Green Banana Flour and La Fe Green Banana Dough are processed differently from fresh fruit, so read their own labels rather than using the numbers on this page.
For fresh fruit, logging is quick. BodyPal can log a green banana from a photo, and the size you pick, small, medium or large, is what moves the total.
How does green banana compare?
Here is how a green banana stacks up against a regular banana, a large banana and green grapes, per 100 g and per usual serving.
Verdict: Green and ripe banana share the same USDA row, so both land at 89 per 100 g and the choice comes down to taste and texture. If you want the fewest calories per bite, green grapes win at 69 per 100 g, though a 1 cup (151 g) serving still reaches 104.
Most popular green banana brands in the United States
Ranked by popularity in the BodyPal database
# Productkcal / 100 g
1Let's Do Organic Organic Green Banana Flour1 tbsp · 11 g364 kcal
2Just About Foods Green Banana Flour4 tbsp · 30 g333 kcal
3La Fe Green Banana Dough1 cup · 140 g93 kcal
These are dried or milled green banana products, so their per-100 g numbers run far above the 89 calories of the fresh fruit. Source: manufacturer labels / USDA FoodData Central.
Green banana FAQs
How many calories are in one green banana?
A medium green banana (118 g) has about 105 calories. A large one (136 g) has 121 and a small one (101 g) has 90.
Is green banana good for weight loss?
A medium green banana is 105 calories with 3.1 g of fiber and 0.4 g of fat, or 89 calories per 100 g.
Green banana vs ripe banana: which has fewer calories?
USDA lists bananas at 89 calories per 100 g; its ripe and slightly ripe sample comes out at 97 calories per 100 g and its overripe sample at 85.
How many carbs are in a green banana?
A medium green banana (118 g) has 27 g of carbs, including 3.1 g of fiber and 14.4 g of sugars. Per 100 g that is 22.8 g of carbs.
How many calories are in two green bananas?
Two medium green bananas (236 g) have 210 calories. They also bring 2.6 g protein and 2 mg sodium, so nearly all of that energy comes from carbs. Three medium bananas reach 315 calories.
What are the nutrition facts for 100 g of green banana?
Per 100 g, green banana has 89 calories, 22.8 g carbs, 1.1 g protein and 0.3 g fat. It also has 2.6 g fiber, 12.2 g sugars, 1 mg sodium and 358 mg potassium.
How much protein does a green banana have?
A medium green banana has 1.3 g protein, which is 3% of the daily value. Per 100 g it is 1.1 g, and protein supplies only 4% of the calories, so pair it with a protein food if you want a filling snack.
What are the macros of a green banana?
A medium green banana has 27 g carbs, 1.3 g protein and 0.4 g fat for 105 calories. By calories the split is 93% carbs, 4% protein and 3% fat, so it counts almost entirely as a carb.
Is a green banana fattening?
A medium green banana has 105 calories and 0.4 g fat, about 5% of the daily value for calories. Whether it adds weight depends on your total intake; five medium bananas add up to 525 calories.
