Use this free Weight Calculator to handle weight in seconds — accurate results for everyday tasks.
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BMI is calculated with the standard Body Mass Index formula — weight in kilograms divided by height in meters squared (kg/m²) — the same method used by the WHO and CDC.
Your result is then placed into the standard adult categories: Underweight (below 18.5), Normal (18.5–24.9), Overweight (25–29.9), or Obese (30 and above).
Use this free Weight Calculator to handle weight in seconds — accurate results for everyday tasks.
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