This tool calculates your Body Mass Index (BMI), a standard health indicator that estimates body fat based on height and weight. It is designed for adults, children, and teenagers who want a quick, data-driven assessment of their weight category.

• Free BMI Calculation: Instantly computes your BMI score after you input your height, weight, age, and gender.
• Age-Specific Classification: Provides different BMI classifications for adults (using WHO standards) and for children/teens aged 2-20 (using CDC percentiles).
• Official Health Data: Uses classification criteria sourced directly from the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC).
• Multiple Unit Systems: Supports both metric (kilograms, centimeters) and US customary units (pounds, feet/inches) for calculation.
• Additional Health Metric: Also calculates the Ponderal Index, which can provide a complementary measure of body composition.