Health & Wellness

BMI & Healthy Weight Calculator

Body Mass Index is a screening tool — not a diagnostic of body fatness or health. Uses the CDC formula and CDC healthy-weight range.

CDC BMI categories (adults)

Category	BMI
Underweight	< 18.5
Normal	18.5–24.9
Overweight	25.0–29.9
Obese (Class I)	30.0–34.9
Obese (Class II)	35.0–39.9
Obese (Class III)	≥ 40.0

Limits of BMI

BMI does not distinguish muscle from fat. Athletes with high lean mass may score "overweight." It also doesn't capture fat distribution, which matters for metabolic risk. Use it as a starting point, not a verdict.