BMI Calculator - Health Assessment Tool

BMI Calculator

Calculate your Body Mass Index and assess your health risk

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ft in
lbs

Your Results

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Your BMI
Enter your measurements
Click "Calculate BMI" to see your health risk assessment

BMI Classification & Risk Stratification

BMI Range Classification Health Risk Recommendations
Below 18.5 Underweight Increased risk of nutritional deficiency Consult healthcare provider about healthy weight gain
18.5 - 24.9 Normal Weight Lowest risk Maintain current weight through healthy lifestyle
25.0 - 29.9 Overweight Increased risk of cardiovascular disease Weight loss through diet and exercise recommended
30.0 - 34.9 Obese Class I High risk of health complications Professional weight management program recommended
35.0 - 39.9 Obese Class II Very high risk of health complications Medical supervision for weight loss essential
40.0+ Obese Class III Extremely high risk Immediate medical intervention recommended

Important Medical Disclaimer

BMI is not a perfect measurement for individuals and tends to be used more for population-level epidemiological studies. However, it still generally correlates to disease risk even in individuals. This calculator provides general health information and should not replace professional medical advice, diagnosis, or treatment.

Understanding BMI Limitations

Key Limitations:

  • Doesn't differentiate between fat mass and muscle mass - Athletes and muscular individuals may have high BMI but low body fat
  • Doesn't account for fat distribution (visceral vs. subcutaneous fat)
  • May not accurately reflect health risks in elderly populations
  • Doesn't consider bone density variations
  • May not be appropriate for all ethnic groups

For Best Results, Use BMI With:

  • Waist circumference measurements
  • Body fat percentage analysis
  • Physical fitness assessments
  • Blood pressure and metabolic markers
  • Professional medical evaluation

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Goal Setting Strategies
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