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Heart Rate & Cardiovascular

Target heart rate zones, Tanaka/Fox max heart rate, Karvonen heart rate reserve (HRR), and VO2 Max approximations.

Showing 9 specialized calculators.

Calculate 5-zone cardiovascular training boundaries using the Karvonen Heart Rate Reserve method

Calculate specific target heart rates for cardio training intensities

Calculate maximum heart rate comparing Tanaka, Fox, and Gellish formulas

Evaluate resting cardiovascular tone and autonomic health status

Calculate Heart Rate Reserve (HRR = HRmax - HRrest)

Dedicated implementation of Dr. Martti Karvonen's 1957 Heart Rate Reserve equation

Estimate maximal oxygen uptake (VO2 Max) using the Uth ratio formula

Calculate cardio conditioning zones for endurance and fat loss

Assess cardiovascular fitness and vagal reactivation after intense exercise

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