Resting Heart Rate Calculator (Fitness & Health)
Assess your resting heart rate against age and fitness norms. Understand what your RHR reveals about cardiovascular fitness and health.
Resting Heart Rate Guide
What Resting Heart Rate Reveals
Resting heart rate (RHR) is your heart rate when completely at rest. One of the simplest and most useful health metrics. Normal adult range: 60-100 bpm (standard medical definition). Healthier range: 50-70 bpm for most fit adults. Athletes: often 40-60 bpm. Elite endurance athletes: sometimes 30-40 bpm. Why lower (usually) means fitter: a strong, efficient heart pumps more blood per beat (higher stroke volume). It needs fewer beats to circulate the same blood. Endurance training increases heart
Measuring Accurately
Best practice: measure on waking, before getting up. Lie still. Count pulse for 60 seconds (or 30 seconds × 2, or 15 seconds × 4). Pulse points: wrist (radial — thumb side). Neck (carotid — gently, one side only). Or use a fitness tracker/smartwatch. Factors that temporarily raise RHR: caffeine. Recent exercise. Stress or anxiety. Illness/fever. Dehydration. Poor sleep. Some medications. Alcohol (raises overnight RHR). For accurate baseline: measure several mornings, take the average. Don't meas
RHR and Fitness
Age-related norms (resting, healthy adults): 18-25: men 49-73, women 54-78 (athletes lower). 26-35: men 49-74, women 54-79. 36-45: men 50-75, women 54-79. 46-55: men 50-76, women 54-80. 56-65: men 51-76, women 54-80. 65+: men 50-73, women 54-79. Fitness categories (approximate, ages 36-45): athlete: under 56. Excellent: 57-62. Good: 63-66. Above average: 67-70. Average: 71-75. Below average: 76-82. Poor: over 82. Improving your RHR: regular aerobic exercise (most effective). Cardiovascular train
When to Seek Medical Advice
See your GP if: RHR consistently over 100 bpm at rest (tachycardia) without obvious cause. RHR under 50 bpm WITH symptoms (dizziness, fainting, fatigue, breathlessness) in a non-athlete. Sudden unexplained change in RHR. Irregular pulse (could indicate atrial fibrillation — important to detect). Palpitations, chest pain, or fainting episodes. Atrial fibrillation (AF): irregular, often fast pulse. Affects 1.5 million+ UK adults. Major stroke risk if untreated. Many wearables now detect possible A
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