Heart Rate Zones Calculator
Calculate five practical heart-rate zones using your selected method and maximum-heart-rate source.
Your heart-rate values
Heart Rate Zones
Your five heart-rate zones will appear here.
How this works
% Maximum Heart Rate uses only your entered or estimated maximum. Heart Rate Reserve also uses resting heart rate.
Age-based maximum heart rate is an estimate, and individual responses vary. These zones are practical guides rather than measured physiological thresholds.