Calories in Banana
Per 1 medium, 118 g
Banana has 105 calories per 1 medium, 118 g. That is about 5% of a 2,000-calorie day. The same serving provides 1.3 g of protein, 27.0 g of carbohydrate, 0.4 g of fat and 3.1 g of fibre. Per 100 g, that works out at 89 calories and 1.1 g of protein. Against the thresholds EU food labelling uses, it qualifies as fat free and low energy density. Riper bananas taste sweeter but carry the same calories — the starch has just turned to sugar.
Calories and macros
| Per 1 medium, 118 g | Serving | Per 100 g | % of daily intake |
|---|---|---|---|
| Calories | 105 kcal | 89 kcal | 5% |
| Protein | 1.3 g | 1.1 g | 3% |
| Carbohydrate | 27.0 g | 22.9 g | 10% |
| Fat | 0.4 g | 0.3 g | 1% |
| Fibre | 3.1 g | 2.6 g | 10% |
Daily intake percentages use the EU reference intakes an average adult label is based on: 2,000 kcal, 50 g protein, 260 g carbohydrate, 70 g fat, 30 g fibre.
What this is good for
These are the nutrition claims this food would qualify for under EU labelling rules — thresholds, not opinions.
Worth knowing
Figures are for a typical example and will vary by brand, ripeness and how it was cooked. For a target of your own, run the calorie calculator or take the short quiz. To log this without doing the arithmetic, Joules is free.
Figures last reviewed 29 August 2026.
Common questions about a banana
How many calories are in a banana?
Banana has 105 calories per 1 medium, 118 g, which is about 5% of a 2,000-calorie day.
How many calories are in 100 g of banana?
100 g of banana contains 89 calories.
How much protein is in a banana?
One serving of 1 medium, 118 g provides 1.3 g of protein — 1.1 g per 100 g, or 3% of the 50 g daily reference intake.
How many carbs are in a banana?
One serving of 1 medium, 118 g contains 27.0 g of carbohydrate, of which 3.1 g is fibre.
What is a banana a good source of?
Measured against EU food labelling thresholds, banana qualifies as fat free and low energy density. Under 0.5 g of fat per 100 g. Under 120 calories per 100 g, so a filling portion stays affordable.