BMI Calculator

Calculate Body Mass Index.

BMI & Health Calculator
About this tool

The Body Mass Index (BMI) Calculator is a widely used tool for assessing an individual's weight in relation to their height. It provides a simple, standardized measure to help classify a person's weight status, indicating whether they might be underweight, of a normal weight, overweight, or obese. While BMI does not measure body fat directly and doesn't account for factors like muscle mass, it serves as a useful and quick screening tool for potential weight-related health issues. It's a valuable starting point for individuals looking to understand their overall health profile and can be a motivator for adopting a healthier lifestyle. The calculator is designed to be user-friendly, accommodating both metric and imperial units. You can easily switch between the two systems using the tabs provided. If you choose the 'Metric' system, you will need to enter your height in centimeters (cm) and your weight in kilograms (kg). If you prefer the 'Imperial' system, you will be prompted to enter your height in feet and inches, and your weight in pounds (lb). After you have entered your measurements, press the 'Calculate BMI' button. The tool will then compute your BMI score using the standard formula. The result is displayed prominently, along with the corresponding weight category according to the World Health Organization's classifications (e.g., Underweight: <18.5, Normal weight: 18.5–24.9, Overweight: 25–29.9, Obesity: ≥30). It's important to remember that BMI is a general guide; for a comprehensive health evaluation, it is always recommended to consult with a healthcare professional who can consider individual factors.