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BMI Calculator

BMI, its band and the healthy weight range, under both WHO and Chinese standards

BMI
22.5NormalHealthy range: 53.5 – 72.0 kg
Bands
  • Underweight0 – 18.5
  • Normal18.5 – 25
  • Overweight25 – 30
  • Obese I30 – 35
  • Obese II35 – 40
  • Obese III40 +

BMI = weight (kg) ÷ height (m)². The WHO and Chinese (WS/T 428-2013) cut-offs differ for overweight and obesity — switch the standard to compare. BMI cannot tell muscle from fat, so treat it as a rough guide.