BMI Calculator
Inputs
BMI Calculator
Body mass index from height and weight. Informational only — not a diagnosis.
Primary result
BMI
23.5
Breakdown
CategoryNormal
NoteNot a medical diagnosis
Informational only. Not medical diagnosis or treatment advice.
Formula
BMI = kg / m²
WHO adult categories: under 18.5 underweight, 18.5–24.9 normal, 25–29.9 overweight, 30+ obesity. BMI does not measure fat, muscle or health by itself.
Example
170 cm, 68 kg → BMI 23.5 (normal)
FAQ
Is this a diagnosis?
No. It is a screening number. Talk to a clinician for medical advice.
Does it work for children?
Child BMI uses percentiles, not these adult cut-offs.
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