Dieting and Weight Loss
Body Mass Index

What is BMI for size zero?

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Wiki User
May 26, 2009 7:13AM

There isn't one, it depends on your shape/height and the brand of clothing. I would say the majority of people who wear a size zero are underweight, or are quite close to being so, unless they are 5'0" or shorter. Someone who is underweight has a BMI under 18.0.