It takes approximately three medium bananas or four small bananas to make a pound. Additionally, it takes approximately 1 1/3 cups of mashed bananas or 4 1/2 cups of sliced, dried bananas to make a pound. The number of bananas in a pound depends on the size of the fruit.
A medium banana yields 2/3 cup of sliced banana while two medium bananas are needed to make 1 cup of diced banana. Three medium bananas are needed to make up 1 cup of mashed banana.
Bananas grow on perennial herbs that look similar to trees. The fruit, often called fingers, grows in a group called a hand.