Understanding Body Mass Index (BMI)
Body Mass Index (BMI) is a standardized measurement used globally to assess whether a person has a healthy body weight relative to their height. It is widely used in medical and fitness industries as a first-level screening tool for weight-related health risks.
The World Health Organization (WHO) recognizes BMI as a useful population-level indicator for identifying individuals at risk of chronic diseases such as heart disease, type 2 diabetes, and hypertension.
BMI Classification Chart
| Category | BMI Range | Health Risk |
|---|---|---|
| Underweight | < 18.5 | Medium |
| Normal | 18.5 – 24.9 | Low |
| Overweight | 25 – 29.9 | High |
| Obese | 30+ | Very High |
BMI Formula
BMI = weight (kg) ÷ height² (m²)
In imperial units: BMI = (lbs ÷ inches²) × 703
Health Risks Associated with BMI
- Cardiovascular diseases
- Type 2 diabetes
- High blood pressure
- Metabolic syndrome
- Joint and mobility issues
Limitations of BMI
BMI does not distinguish between muscle mass and fat mass. Athletes may have high BMI despite low body fat. Therefore, BMI should always be combined with other health indicators.
How to Maintain a Healthy BMI
- Balanced diet rich in nutrients
- Regular physical exercise
- Adequate hydration and sleep
- Reduce processed food intake
Medical Disclaimer
This BMI calculator is for informational purposes only and does not replace medical advice. Always consult a healthcare professional for medical diagnosis or treatment.