Heart Rate Zone Calculator

Overview

The Heart Rate Zone Calculator helps you calculate your 5 training heart rate zones for optimal workouts. based on age and optional resting heart rate using 220-age or karvonen method..

How to Use

1. Navigate to the Heart Rate Zone Calculator page
2. Enter your values in the input fields
3. View results instantly — no page reload needed
4. Save your calculations to your dashboard (requires sign-in)

Understanding the Results

The calculator provides detailed breakdowns of your inputs and computed outputs. Hover over any result for additional context.

Tips

• All calculations run locally in your browser — your data stays private
• Saved calculations sync across devices when signed in
• Export results as CSV or PDF from your dashboard

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