Scale to GramsHow Much Does a Banana Weigh? Complete Size & Weight Guide
Quick Answer
A medium banana (7-8 in) weighs about 4.2 oz (118g) with the peel, or 2.5 oz (75g) of edible fruit. Most US nutrition labels assume this medium size.
Weigh Food From a PhotoMedium banana
4.2 oz
118g with peel
Edible portion
2.5 oz
~75g, ~62% of total
Calories
~105 cal
medium banana, peeled
Banana Weight by Size
Banana sizes vary by length. The USDA reference assumes a medium banana, which is what most nutrition labels mean by "1 banana".
| Size | Length | With peel | Edible only |
|---|---|---|---|
| Extra-small | under 6 in | 2.9 oz / 81g | 1.8 oz / 50g |
| Small | 6-7 in | 3.6 oz / 101g | 2.2 oz / 63g |
| Medium | 7-8 in | 4.2 oz / 118g | 2.5 oz / 75g |
| Large | 8-9 in | 4.8 oz / 136g | 3.0 oz / 86g |
| Extra-large | 9+ in | 5.4 oz / 152g | 3.4 oz / 96g |
With Peel vs Without Peel
The peel is about 35-40% of a banana's weight. A medium 4.2 oz (118g) banana yields about 2.5 oz (75g) of edible fruit. Nutrition data is always for edible only. Multiply peeled weight by 1.6 to back into whole weight, or multiply whole by 0.62 for edible.
Banana Calories by Weight
Bananas are 89 calories per 100g of edible fruit, almost entirely carbs.
| Size | Calories | Carbs | Potassium |
|---|---|---|---|
| Small | ~90 cal | 23g | ~360 mg |
| Medium | ~105 cal | 27g | ~422 mg |
| Large | ~121 cal | 31g | ~487 mg |
| Extra-large | ~135 cal | 34g | ~544 mg |
Why Weight Varies
Variety matters most: Cavendish (standard supermarket) is larger than Lady Finger or Red bananas. Ripeness drops weight 2-5% as water evaporates. Growing conditions and harvest timing add a few more grams of variation.
How to Estimate Without a Scale
A banana the length of your hand from wrist to fingertip is roughly medium (4.2 oz / 118g). For recipes calling for "2 medium bananas," use about 5 oz (150g) of peeled fruit. For an instant weight estimate, photograph the banana with our AI scale tool.
Frequently Asked Questions
How much does a dozen bananas weigh?+
A dozen medium bananas weighs about 3.1 lbs (1.4 kg) with peels, or about 2 lbs (900g) of edible fruit. A grocery bunch of 5-7 bananas usually weighs 1.5-2 lbs.
How much does a banana weigh in ounces?+
A medium banana weighs 4.2 oz (118g) with the peel, or 2.5 oz (75g) without. Large bananas hit 4.8 oz, extra-large 5.4 oz.
How much does a banana weigh without the peel?+
A medium peeled banana weighs about 2.5 oz (75g). The peel is roughly 38% of the total weight.
How many calories in a medium banana?+
A medium banana (peeled, 75g) has about 105 calories, 27g of carbs, 3g of fiber, and 422 mg of potassium.
How much does one cup of mashed banana weigh?+
One cup of mashed banana weighs about 8 oz (225g), roughly 3 medium bananas peeled.
Are organic bananas heavier than regular bananas?+
No. Organic vs conventional growing has no significant effect on weight. Variety and ripeness are the bigger factors.
Try These Tools
Put what you learned into practice with our free AI tools:
