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Target Heart Rate Calculator

Best measured lying down, first thing in the morning.
Worked example result
Estimated maximum heart rate (Tanaka)187 bpm
Heart-rate reserve127 bpm
Target heart rate149 bpm

At 30 with a resting rate of 60 bpm, Tanaka HRmax is 187 bpm and the reserve is 127 bpm — so 70% intensity means a target of about 149 bpm.

HRmax = 208 − 0.7 × age (Tanaka) · Reserve = HRmax − resting HR · Target HR = resting HR + intensity % × reserve (Karvonen) · Powered by CalcHub — Target Heart Rate Calculator