Generate five training heart-rate zones using max-HR formulas and Karvonen reserve model.
TRAINING ZONES
Build 5-zone training bands using max-HR equations and optional Karvonen reserve model.
How It Works
Current age.
Used for formula context.
Resting heart rate in BPM.
Formula used to estimate max HR.
Simple max-HR model or reserve-based Karvonen.
Quick Presets
Run the tool to view computed outputs, explanation steps, and tables.