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What is the BMI for someone 5'3" and 100 lbs?

Answer
BMI: 17.7 (Underweight)
Normal weight range for 5'3": 104-141 lbs4 lbs below normal rangeConsider consulting a healthcare provider

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How We Calculated This

BMI = (weight × 703) / height²

(100 × 703) / (63 × 63) = 70,300 / 3969 = 17.7

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Calculated using verified formulas. Last updated March 2026.