BMI Calculator
Calculate your Body Mass Index - and see how it compares to both standard WHO and Asian-specific cutoffs relevant to diabetes risk.
Educational estimator only - not medical advice.
Enter your weight and height above to calculate your BMI.
BMI is calculated by dividing your weight in kilograms by the square of your height in metres:
Standard WHO cutoffs classify BMI as: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), and Obese (>=30).
Asian BMI cutoffs use lower thresholds - Overweight >=23 and Obese >=27.5 - because research shows Asian populations carry metabolic risk at lower BMI values compared to European populations. The World Health Organization and several Asian health authorities now recommend these adjusted thresholds for people of Asian descent.
Important limitation: BMI does not distinguish between fat and muscle mass, and does not account for where fat is distributed in the body (central/abdominal fat carries higher metabolic risk). It is a screening tool, not a diagnostic measure.
Understand what's actually happening inside your body - how excess weight drives insulin resistance, inflammation, and the progression toward type 2 diabetes. FOD Starter Chapter 2 explains the underlying physiology clearly.
FOD Starter: Ch 2 - What Is Actually HappeningThis calculator is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. BMI is a screening tool with known limitations. Always consult your healthcare provider regarding your weight, metabolic health, and diabetes risk.