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Body Mass Index (BMI) is a simple screening tool that uses your height and weight to estimate body fat and categorize weight status. While not a diagnostic tool, it helps identify potential health risks.

BMI Calculator

lbs
inches

5'8" = 68 inches

Results

BMI

25.8

Category

Overweight

Health Risk Level

Moderate

Weight Change Needed

6

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How It Works

BMI is calculated by dividing weight in kilograms by height in meters squared. For imperial units, the formula is adjusted with a conversion factor of 703.

Formula

BMI = weight(kg) / height(m)^2 or BMI = weight(lbs) / height(in)^2 × 703

Assumptions

  • BMI does not distinguish between muscle and fat
  • Categories are for adults 20+
  • Not applicable for athletes with high muscle mass
  • Does not account for bone density or body composition
This calculator provides estimates for informational purposes only and does not constitute medical advice. Consult a healthcare professional for personalized guidance.

Frequently Asked Questions

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