This week I developed a BMI Calculator Web Application designed to provide users with more than just a Body Mass Index score. Instead of showing a single number, the application delivers a comprehensive health overview including:

Body Mass Index (BMI)
Body Fat Percentage Estimate
Basal Metabolic Rate (BMR)
Total Daily Energy Expenditure (TDEE)
Ideal Body Weight
Lean Body Mass
Interactive BMI Gauge Visualization
Support for Metric and Imperial Units

This BMI Calculator is based on internationally recognized health and nutrition formulas used by organizations such as the World Health Organization and Centers for Disease Control and Prevention. The app calculates Body Mass Index (BMI) by comparing a user’s weight to the square of their height, providing an indication of whether they are underweight, normal weight, overweight, or obese. To deliver deeper insights, the calculator also estimates Body Fat Percentage, Basal Metabolic Rate (BMR), Total Daily Energy Expenditure (TDEE), Ideal Body Weight, and Lean Body Mass using scientifically validated equations commonly applied in nutrition, fitness, and healthcare.