Health Metrics Calculator: BMI, Body Fat & Calorie Needs in JavaScript
Description
Comprehensive Health Metrics Calculator
This prompt helps create a professional web application for calculating key health metrics using HTML5, CSS3, and JavaScript based on medical standards.
Who Should Use This
- Developers building health-tech applications
- Fitness startups and health platforms
- Medical portals and clinics
Key Features
- BMI Calculation — with visual classification scale and health risk assessment
- Body Fat Percentage — Navy, Jackson-Pollock, BIA simulation methods
- Ideal Weight — Hamwi, Devine, Robinson, Miller formulas
- Calorie Calculator — BMR using Harris-Benedict, Mifflin-St Jeor, Katch-McArdle equations
- User Profiles — measurement history with trend visualization
- PDF Export — printable reports with all metrics and recommendations
>_ Prompt
Build a comprehensive health metrics calculator with HTML5, CSS3 and JavaScript based on medical standards. Create a clean, accessible interface with step-by-step input forms. Implement accurate BMI calculation with visual classification scale and health risk assessment. Add body fat percentage calculator using multiple methods (Navy, Jackson-Pollock, BIA simulation). Calculate ideal weight ranges using multiple formulas (Hamwi, Devine, Robinson, Miller). Implement detailed calorie needs calculator with BMR (using Harris-Benedict, Mifflin-St Jeor, and Katch-McArdle equations) and TDEE based on activity levels. Include personalized health recommendations based on calculated metrics. Support both metric and imperial units with seamless conversion. Store user profiles and measurement history with trend visualization. Generate interactive progress charts showing changes over time. Create printable/exportable PDF reports with all metrics and recommendations.