Lebnexis Challenge Experience
WebBMI Calculator App
BMI Calculator App desktop preview
Desktop Preview
BMI Calculator App mobile preview
Mobile Preview
WEB
3-4 hours
BEGINNER
Mentor Reviewed
Challenge Overview

BMI Calculator App

Build a BMI Calculator mobile app UI where users can: Select gender Adjust height using slider Increase/decrease weight & age Calculate BMI View result screen Use JavaScript to calculate BMI and switch between screens dynamically.

Core Build

Project Requirements

  • Build full mobile UI based on design
  • Create gender selection cards (Male / Female)
  • Highlight selected gender
  • Implement height slider (range input)
  • Display height value dynamically
  • Add weight controls (+ / - buttons)
  • Add age controls (+ / - buttons)
  • Create "Calculate" button
  • Calculate BMI using JS:
  • BMI = weight / (height/100)^2
  • Navigate to result screen after calculation
  • Display BMI result
  • Display status:
  • Underweight
  • Normal
  • Overweight
  • Obese
  • Add "Re-Calculate" button to go back
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