Calculate your Targeted Heart Rate for Age ≧ 40 Human Years - For Men Only

Karvonen Formula Calculator

(For Age Over 40)

Age:

Resting Heart Rate (RHR):

Zones	Lower Limit / Bound	Upper Limit / Bound
Zone 1 (50% - 60%)
Zone 2 (60% - 70%)
Zone 3 (70% - 80%)
Zone 4 (80% - 90%)
Zone 5 (90% - 100%)