A medium banana, typically about 7-8 inches long, contains approximately 105 calories. The calorie content varies by size, with smaller bananas around 72-90 calories and larger ones ranging from 120 to 135 calories or more
. Here is a rough calorie guide by banana size:
- Extra small (under 6 inches): ~72 calories
- Small (6-7 inches): ~90 calories
- Medium (7-8 inches): ~105 calories
- Large (8-9 inches): ~121 calories
- Extra large (9+ inches): ~135 calories
Most of the calories in a banana come from carbohydrates, with a medium banana having about 27 grams of carbs and 3 grams of fiber
. The calorie count can also be influenced by the banana's ripeness, as starch converts to sugar during ripening, slightly increasing calories
