The Ultimate BMI Calculation Guide
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 the weight in kilograms divided by the square of the height in metres (kg/m2).
Why BMI Matters?
Standardized tracking helps identify risk factors for various health conditions. This interactive tool provides baseline data for your fitness journey.
BMI Categories:
- Underweight: < 18.5
- Normal weight: 18.5–24.9
- Overweight: 25–29.9
- Obesity: >= 30