Heart Rate Calculator

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1. Enter your age, resting heart-rate, and gender.
2. Enter your maximum heart-rate if you know it – otherwise leave that field blank and it will be estimated as follows:
         (Males: 214-(0.8*age).   Females: 209-(0.7*age).
3. Press “Calculate”.
         The training zone values are calculated using the Karvonen formula:
         Heart rate = ((Max HR-Resting HR)*%X/100)+Resting HR. (where %X =%MAX, e.g. 60)
4. Press "Reset" after each calculation to prevent inaccurate results.

Age	Resting HR	Maximum HR	Easy(60-75%)	AT(85-90%)	VO2 Max(90-100%)
Male	Female