The VO₂ Max Calculator helps users estimate their maximum oxygen uptake (VO₂ Max), an important indicator of cardiovascular fitness. The calculation is based on:
✔ Age
✔ Heart rate after exercise
✔ Exercise duration

It provides a fitness level rating and allows users to download a PDF report of their results.

User Guide

1. Enter Age

   • Input your current age in years.

2. Enter Heart Rate

   • Measure and enter your heart rate immediately after exercise (bpm).

3. Enter Exercise Duration

   • Input the time (in minutes) spent in the exercise.

4. Calculate VO₂ Max

   • Click Calculate VO₂ Max to estimate your fitness level.

5. Download Report

   • Click Download Report as PDF to save your fitness data.