FullCalculator

Target Heart Rate Calculator

Heart Rate Training Zones

Formula

MHR = 220 - age | Karvonen: THR = (MHR - RHR) × % + RHR

Frequently Asked Questions

What is target heart rate?
Target heart rate is the ideal range for exercise intensity. The simple formula: MHR = 220 - age. For fat burning, aim for 60-70% of MHR. For cardio fitness, 70-80%. The Karvonen method is more accurate and uses resting heart rate: THR = (MHR - RHR) × %intensity + RHR.

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