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What is the BMI for someone 6'1" and 100 lbs?

Answer
BMI: 13.2 (Underweight)
Normal weight range for 6'1": 140-189 lbs40 lbs below normal rangeConsider consulting a healthcare provider

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How We Calculated This

BMI = (weight × 703) / height²

(100 × 703) / (73 × 73) = 70,300 / 5329 = 13.2

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Calculated using verified formulas. Last updated March 2026.