Resting Heart Rate (RHR) Calculator

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About the Resting Heart Rate (RHR) Calculator

Use this Resting Heart Rate Calculator to check whether your RHR falls into a typical range and to get an educational VO₂max estimate from heart rate. A lower resting pulse often reflects better cardiorespiratory fitness; persistent elevation can signal stress, poor sleep, dehydration, illness, or medication effects.

  • RHR bands (general): <50 = very low (athletic context); 50–59 = low/fit; 60–80 = common adult range; 81–100 = elevated; >100 = high (discuss if persistent).
  • VO₂max (educational): HRmax≈220 − age; VO₂max≈15 × (HRmax/RHR).
  • Improve RHR: consistent sleep, aerobic training, hydration, stress management, and moderation with alcohol/nicotine.

Educational tool — not medical advice. Medications (e.g., beta-blockers) and health conditions can alter heart rate.

FAQ

  • What is a normal resting heart rate?
    Roughly 60–80 bpm for many adults; athletes can be lower. Consistently >100 bpm warrants clinical context.
  • When should I measure RHR?
    In the morning after waking, before caffeine or activity, and when well rested.
  • What lowers RHR over time?
    Aerobic fitness, quality sleep, stress reduction, and hydration.
  • How is VO₂max estimated?
    VO₂max≈15×(HRmax/RHR) using age-predicted HRmax (220 − age). Educational only.

Disclaimer

This tool is for educational purposes only. It is not medical advice and does not diagnose any condition. Discuss concerns and persistent abnormalities with a qualified clinician.

References