Heart Rate Training Zones Calculator

House and Johnston Method

Enter your maximum heart rate (HR max) and click the calculate button to show your target HR zones.

    An asterisk (*) indicates a required field.



    Intensity Zone HR
    Zone 0 - Recovery
    Zone 1 - Basic Endurance
    Zone 2 - No Man's Land
    Zone 3 - Uppermost Aerobic
    Zone 4 - Anaerobic
    Zone 5 - Maximum Effort