Calculate your Body Mass Index (BMI) with multiple classification standards. Get health recommendations and ideal weight range. Pure client-side.
Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight, and obesity in adults. It is defined as a person's weight in kilograms divided by the square of their height in meters (kg/m²). This calculator supports multiple international classification standards and provides personalized health recommendations. All calculations happen in your browser — no data is sent to any server.