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Heart Rate Zone Calculator

Upload your workout data to calculate your personalized heart rate training zones

Upload Your Workout

For Best Results

  • Use a recent workout with at least 20 minutes of continuous activity
  • Ideal: A 5K or 10K race/time trial
  • Update your zones every 4-6 weeks

For demonstration purposes, this tool uses sample data. In a production environment, you would upload actual workout files (FIT, GPX, TCX) for analysis.

or drag and drop

FIT, GPX, TCX, or CSV files up to 10MB

We'll send your analysis to this email address