Calories in banana

Raw, flesh only. 89 kcal (372 kJ) per 100 g. Choose a portion below and every figure on the page updates.

Bananas are one of the most searched foods for calorie counts, mostly because a single medium banana is a common snack and a common pre-workout carbohydrate source. The flesh is almost entirely water and carbohydrate, with a small but useful amount of potassium and vitamin B6.

Where the energy comes from

Share of total energy contributed by each macronutrient, using the standard 4/4/9 kcal per gram factors:

Things worth knowing

• Ripeness changes the sugar profile but barely changes total calories: as a banana ripens, starch converts to sugars, so a green banana and a spotty banana contain roughly the same energy.
• Green (unripe) bananas contain more resistant starch, which is fermented in the colon rather than fully digested, so very green bananas may deliver slightly fewer usable calories.
• The often-quoted "105 calories" figure refers to one medium 118 g banana, not to 100 g.

Converting these figures

One 1 medium (7" to 7-7/8" long) of banana is 105 kcal, which is 439 kJ. To convert any other figure, divide kilojoules by 4.184 for calories, or use the converter on the home page.

It takes 269 g of banana to reach 1,000 kJ (239 kcal). See how that compares with other foods on the 1000 kJ to calories page.