Advanced Heart Rate Zone Calculator
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What This Calculator Measures
- Max HR: Estimated maximum heart rate (220 - age formula)
- HR Reserve: Difference between max and resting HR (Karvonen method)
- Training Zones: 5 intensity levels with specific benefits
- Accuracy: ±5 BPM (consider lab test for competitive athletes)
Max HR decreases ~1 beat per year after age 20
Measure first thing in morning before getting up
Disclaimer:- The results provided by this calculator are intended for informational purposes only and may not be 100% accurate. The calculations are based on standard formulas and general data collected from publicly available health resources on the internet. Individual results may vary due to differences in body composition, health conditions, and other personal factors. This tool is not a substitute for professional medical advice, diagnosis, or treatment. We strongly recommend consulting with a qualified doctor or healthcare professional before making any health-related decisions based on these results.