BMI Calculator
Calculate your Body Mass Index (BMI) from your weight and height, and see which BMI category you fall into using WHO Asia-Pacific classification cutoffs.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Your result
22.9
BMI
AI explanation
Formula
BMI = weight(kg) / height(m)²Worked example
70kg, 175cm
| Field | Value |
|---|---|
| Weight | 70 |
| Height | 175 |
| BMI | 22.9 |
| Category | Normal |
Assumptions
- Uses WHO Asia-Pacific BMI classification cutoffs (Underweight below 18.5, Normal 18.5-22.9, Overweight 23-24.9, Obese 25 and above) — lower than the global WHO cutoffs (25/30), and commonly used for the Indian population in clinical guidance.
- BMI does not distinguish muscle mass from fat mass and may not be accurate for athletes, pregnant individuals, or children.
Frequently asked questions
Is the BMI cutoff the same worldwide?
No — the global WHO classification uses 25 and 30 as the overweight/obese cutoffs, but the WHO Asia-Pacific guidelines use lower cutoffs (23 and 25) because health risk at a given BMI tends to be higher in Asian populations. This calculator uses the Asia-Pacific cutoffs.
Is BMI an accurate measure of health?
BMI is a useful screening tool but does not measure body fat directly or account for muscle mass, bone density, or fat distribution. It should be considered alongside other health indicators, not in isolation.
What should I do if my BMI is outside the normal range?
Consult a doctor or qualified health professional for personalized advice — this calculator is informational only and does not diagnose any medical condition.
Related calculators
Sources
- The Asia-Pacific perspective — redefining obesity and its treatment — World Health Organization (Western Pacific Region). Effective 01-01-2000, reviewed 12-09-2026.
This calculator is for general informational purposes only and does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional regarding your health.
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