Herzfrequenzzonen-Rechner
Find your training heart rate zones using the Karvonen formula.
About this tool
Uses the Karvonen method: Target HR = ((Max HR - Resting HR) × Intensity%) + Resting HR, where Max HR = 220 - age. Measure resting HR first thing in the morning for best accuracy. All calculations happen in your browser.
This calculator is for informational purposes only and does not constitute medical, nutritional, or professional health advice. Consult a healthcare professional before making changes to your diet or exercise routine.