Body mass index

Weight-for-height index

Body mass index

Weight-for-height index

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Does not distinguish fat from muscle, and cut-offs differ for some Asian populations.

Source: WHO. Obesity: preventing and managing the global epidemic. WHO Technical Report Series 894, 2000.Open

Interpretation

  • Underweight — < 18.5 kg/m²
  • Normal range — 18.5–24.9 kg/m²
  • Overweight — 25.0–29.9 kg/m²
  • Obesity — ≥ 30 kg/m²

Does not distinguish fat from muscle, and cut-offs differ for some Asian populations.

Source: WHO. Obesity: preventing and managing the global epidemic. WHO Technical Report Series 894, 2000.

These tools do not replace clinical judgement. Interpret the result in the context of the whole patient.