⚖️ Free BMI Calculator (Body Mass Index)

💡 What is BMI and Why Does It Matter?

Body Mass Index (BMI) is a simple calculation using your height and weight to estimate body fat. Developed by Adolphe Quetelet in the 1830s, it is used worldwide by the World Health Organization (WHO), CDC, and NHS as a quick screening tool for weight-related health risks.

BMI Categories (Adults): Underweight (<18.5), Normal (18.5–24.9), Overweight (25–29.9), Obese (≥30). Higher BMI is linked to increased risk of heart disease, diabetes, hypertension, and certain cancers — but it has limitations (e.g., athletes/muscular people may show “overweight” despite low fat).

⚙️ How to Use This BMI Calculator

• Choose Metric (kg/cm) or Imperial (lbs/feet/inches)
• Enter your accurate measurements
• Click Calculate BMI for instant results, category, chart position, and tips
• Use regularly to track progress — combine with waist measurement for better accuracy

🔒 Limitations of BMI & Better Alternatives

BMI does not distinguish between fat and muscle, nor does it consider age, sex, ethnicity, or fat distribution. For more accurate assessment, use Waist-to-Hip Ratio, Body Fat Percentage, or consult a doctor.