BMI 21.5: What It Means and What to Do
A body mass index of 21.5 places you in the Normal weight category according to WHO and CDC standards. The average BMI for US adults is 29.8 (men: 29.4, women: 30.1).
BMI Scale Position
14UnderweightNormalOverweightObese50
Your BMI: 21.5 — Associated with lowest health risk for most adults
BMI Category
Normal weight
Healthy BMI Range
18.5–24.9