BMI Calculation: 49 kg at 150 cm = Normal Weight (BMI 21.8)

Body Mass Index (BMI) = weight (kg) ÷ height (m)².

Calculation

  • Height: 150 cm = 1.50 m
  • Weight: 49 kg
  • BMI = 49 ÷ (1.50 × 1.50) = 49 ÷ 2.25 = 21.8

Interpretation (WHO Categories)

  • Underweight: < 18.5
  • Normal: 18.5 – 24.9 ✓
  • Overweight: 25 – 29.9
  • Obesity: ≥ 30

Result: BMI 21.8 is solidly in the normal range. Not overweight.

Limitations of BMI

  • Doesn't distinguish muscle vs. fat.
  • Less accurate in athletes, elderly, Asian populations (lower cutoffs).
  • Waist circumference, body fat %, and metabolic markers add context.

For this individual, weight is healthy. Focus on fitness, nutrition, and metabolic health rather than weight loss.

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