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What is the BMI for someone 6'4" and 105 lbs?

Answer
BMI: 12.8 (Underweight)
Normal weight range for 6'4": 152-205 lbs47 lbs below normal rangeConsider consulting a healthcare provider

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How We Calculated This

BMI = (weight × 703) / height²

(105 × 703) / (76 × 76) = 73,815 / 5776 = 12.8

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Calculated using verified formulas. Last updated March 2026.