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Banana Standard

We use 17.78 cm (7 in) as the average banana length — the typical size of a medium Cavendish banana.


For weight, we use 170 g (6 oz) — the average weight of a medium banana with peel.

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Converting centimeters to bananas (cm to bn)

Conversion Formula

To convert centimeters to bananas, use the formula: bn = cm ÷ 17.78

🍌 Banana Fact

A medium banana weighs about 170 grams (6 oz), making it nature's portion-controlled snack.

Why Measure in Bananas?

While meters and feet are fine for contracts, nothing beats the intuitive clarity of banana-based measurement. Whether you're measuring a fish you caught, your new TV, or how tall your houseplant has grown - bananas just make sense.

Quick Reference

Need to know how many bananas something is? Our calculator instantly converts any length to bananas. Finally, a unit of measurement that makes sense! 🍌