Health & Fitness
Heart Rate Zone Calculator
Calculate five heart-rate training zones using estimated maximum heart rate and the Karvonen method.
Calculator
TRAINING ZONES
Calculate heart-rate zones
Enter your age and optional resting heart rate to estimate five training zones.
YOUR RESULT
HOW IT WORKS
About This Calculator
Heart-rate zones are intensity ranges used in exercise training. The estimates here use an age-based maximum heart rate and, when supplied, resting heart rate to calculate heart-rate reserve zones.
Formula & Notes
Estimated max HR = 220 − age. If resting heart rate is entered, Karvonen target = resting HR + (max HR − resting HR) × intensity. If it is left blank, zones use max HR × intensity.
Results are estimates for general informational use and should not be treated as medical, financial, or professional advice where applicable.