Maximum Heart Rate (Tanaka Formula) & Zone 2 Cardio Calculator
Calculate your true Maximum Heart Rate (HRmax) using the clinically validated Tanaka formula [208 - (0.7 * Age)] and pinpoint your exact Zone 2 fat-oxidation endurance training window.
Calculator Inputs
Live Real-TimeEstimated Maximum Heart Rate (Tanaka HRmax)
Zone 2 Aerobic Floor (60% HRmax)
110 BPM
Zone 2 Aerobic Ceiling (70% HRmax)
129 BPM
Detailed Calculation Breakdown
Calculation Methodology
Tanaka HRmax = 208 - (0.7 * Age). Zone 2 Aerobic Base = 60% to 70% of HRmax. Zone 4 Threshold = 80% to 90% of HRmax.
Important Legal & Educational Disclaimer
The Tanaka equation provides significantly higher statistical accuracy across age demographics than the antiquated Fox (220 - age) formula.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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