Target Heart Rate Calculator
Your maximum heart rate and training zones, using the Karvonen heart rate reserve method when you provide resting HR.
How this calculator works
Max HR by Tanaka et al. (2001): 208 − 0.7 × age (more accurate than 220 − age, which is also shown). Zones use the Karvonen method: target = resting HR + %intensity × (max HR − resting HR).
For education only, not medical advice. Talk to a healthcare professional about results that concern you.
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