BMI (body mass index) places weight and height into one ratio and works best as a first-pass screen of adult weight status. It can help answer “where does my height-to-weight ratio fall under these rules?” It cannot answer “what is my body-fat percentage?” or “am I definitely healthy?”
The current page uses height, weight, and a page sex option to show BMI, a weight category, a page reference weight range, and general next-step prompts. The sex option only changes the reference thresholds used by this page; it is not required by the BMI formula and should not be read as a universal medical standard.
If the person is under adult age, pregnant, highly muscular, recovering from an eating disorder, or has a condition that affects height, do not rely on this page alone. Children and teens generally need age- and sex-specific percentiles, and formal health decisions should involve a clinician or other qualified professional.
The page provides male and female options and applies different page-specific category thresholds and reference weight ranges. Adult BMI interpretation varies across organizations, regions, and populations, so this selection does not replace a local standard or individualized assessment.
The page converts height from centimeters to meters, then divides weight in kilograms by height in meters squared: BMI = kg ÷ m².
No. BMI only reflects the height-to-weight ratio and does not distinguish fat, muscle, or bone or include other health measures.
Do not rely on this page alone; these situations usually need age, pregnancy, or other professional context for appropriate interpretation.
The current component uses page-specific male and female reference thresholds and weight ranges; that does not mean every organization classifies adult BMI by sex.
Estimate BMI, a page-specific reference weight range, and weight category from height and weight; for adult screening, not medical, pediatric, or body-fat assessment.