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How Many Calories in 1 Banana?

Quick Answer

A medium banana contains approximately 105 calories. Smaller bananas contain fewer calories, while larger bananas can contain more depending on their weight.

 

Calories in 1 Banana (By Size)

Banana calories vary based on size and ripeness:

  • Small banana (100g): ~89 calories

  • Medium banana (118g): ~105 calories

  • Large banana (136g): ~121 calories

Most supermarket bananas fall into the medium category, so around 100–110 calories per banana is a realistic estimate.

 

Calories in Banana per 100g

Bananas contain approximately 89 calories per 100g.

This makes them a moderate-calorie fruit, higher than berries but lower than many processed snacks.

 

Nutritional Breakdown of a Banana

A medium banana provides:

  • Protein: 1.3g

  • Carbohydrates: 22.8g

  • Fat: 0.3g

Bananas are primarily a carbohydrate-based food, making them a quick source of energy.

 

Do Riper Bananas Have More Calories?

The calorie content of a banana stays roughly the same as it ripens, but:

  • Riper bananas contain more simple sugars

  • Less ripe bananas contain more resistant starch

This affects digestion and blood sugar response more than total calories.

 

Are Bananas Good for Weight Loss?

Bananas can absolutely fit into a weight loss diet when portion sizes are controlled.

They are:

  • Naturally sweet (can reduce cravings)

  • Easy to portion

  • Filling compared to many snack foods

However, because they are higher in carbs than some fruits, eating multiple bananas per day can increase total calorie intake quickly.

 

Banana vs Other Common Snacks

Here’s how a banana compares:

  • Banana (~105 calories)

  • Chocolate bar (~200–250 calories)

  • Packet of crisps (~150–200 calories)

This makes bananas a lower-calorie alternative to many processed snacks.

 

How Bananas Fit Into Your Daily Calories

If your daily intake is:

  • 1500 calories → 1 banana = ~7%

  • 2000 calories → 1 banana = ~5%

This shows bananas can fit easily into most calorie targets without taking up a large portion of your daily intake.

 

Related Calories Guides

 

Track Your Calories Properly

If you want a more accurate view of your daily intake:

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