How I Built a Height Predictor Calculator Using JavaScript

I Built a Height Predictor Calculator Using JavaScript Most calculators on the internet are either too simple or too confusing. I wanted to build something that was both useful and scientifically based, so I built a Height Predictor Calculator using JavaScript that estimates adult height using multiple methods. The Idea One day I was wondering: “How tall will I be?” Instead of building a simple calculator, I created one that uses: Mid-Parental Method Khamis–Roche Method Bone Age Method Method 1 – Mid-Parental Height Boys = (Father height + Mother height + 13) / 2 Girls = (Father height + Mother height - 13) / 2 This gives a baseline estimate. function midParental ( father , mother , sex ) { return sex === " male " ? ( father + mother + 13 ) / 2 : ( father + mother - 13 ) / 2 ; } Method 2 – Khamis–Roche Uses: Age Height Weight Parents height Regression-based formula with blending for realistic results. function khamisRoche ( age , height , weight , father , mother ) { const mid = ( fath