Estimate HRV status from RMSSD and age — see RMSSD, category and recovery readiness.
Estimate HRV status from RMSSD and age — see RMSSD, category and recovery readiness.
Enter values above and click Calculate — results will appear here with the formula explained.
HRV RMSSD reflects parasympathetic activity. Higher is generally better recovery and fitness, but varies by age, fitness and stress. This gives age-adjusted category.
Track trend, not single value. Morning HRV drop 10-20% suggests fatigue. This is wellness, not medical diagnosis.
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HRV RMSSD reflects parasympathetic activity. Higher is generally better recovery and fitness, but varies by age, fitness and stress. This gives age-adjusted category. Formula: Category by age-adjusted RMSSD: 20-30y >60 high, 50-60 moderate, <30 low; decreases ~5ms per decade
Heart Rate Variability Calculator: Estimate HRV status from RMSSD and age — see RMSSD, category and recovery readiness. Formula: Category by age-adjusted RMSSD: 20-30y >60 high, 50-60 moderate, <30 low. Example: At 30, RMSSD 45ms: moderate.
Estimate HRV status from RMSSD and age — see RMSSD, category and recovery readiness. Formula: Category by age-adjusted RMSSD: 20-30y >60 high, 50-60 moderate, <30 low; decreases ~5ms per decade
| Field | What to enter |
|---|---|
| RMSSD (ms) | e.g. 45 |
| Age | e.g. 30 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
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At 30, RMSSD 45ms: moderate. At 50, same 45ms is good. At 25, 70ms is high.
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