What Is a Normal Resting Heart Rate? (By Age and Fitness Level)

Standard Resting Heart Rate Categories

Resting heart rate is the number of times your heart beats per minute while completely at rest — typically measured first thing in the morning, before getting out of bed. For most healthy adults, a normal resting heart rate falls between 60 and 100 beats per minute (bpm), though where you fall in that range says a lot about cardiovascular fitness.

Well-trained endurance athletes commonly measure 40–60 bpm due to a more efficient cardiovascular system — a larger, stronger heart pumps more blood per beat (higher stroke volume), so fewer total beats are needed to meet the body's resting oxygen demand. Use our Resting Heart Rate Calculator to see exactly where your number falls.

Based on: Fox K, Borer JS, Camm AJ, et al. "Resting heart rate in cardiovascular disease." J Am Coll Cardiol. 2007;50(9):823–830. PubMed ↗

What Factors Influence Your Resting Heart Rate

RHR is not a fixed number — it responds to both long-term training adaptations and short-term daily factors:

• Cardiovascular fitness: The single biggest long-term driver. Consistent aerobic training increases stroke volume and typically lowers RHR over 8–12 weeks.
• Age: RHR tends to be higher in early childhood and gradually stabilises into the adult range, with only minor further shifts through older adulthood in the absence of disease.
• Sleep quality: Poor or insufficient sleep the night before commonly elevates next-morning RHR by several beats per minute.
• Hydration status: Dehydration reduces blood volume, requiring the heart to beat faster to maintain circulation, which raises RHR.
• Stress and caffeine: Both activate the sympathetic nervous system, which can temporarily elevate RHR readings.
• Medications: Beta-blockers characteristically lower RHR, while some stimulant medications and thyroid conditions raise it.
• Illness and fever: Acute illness, especially with fever, reliably elevates RHR above your normal baseline.

When Is Resting Heart Rate Considered Abnormal?

A resting heart rate consistently above 100 bpm is called tachycardia, and a rate below 60 bpm is called bradycardia — though bradycardia is a normal, healthy finding in well-conditioned athletes and does not need treatment if you feel well and have no symptoms. What matters clinically is less the single number and more whether it represents a sudden or unexplained change from your personal baseline, especially alongside symptoms.

Seek medical evaluation if your resting heart rate is persistently and unexplainably above 100 bpm or below 50 bpm (without an athletic background), or if an elevated or depressed RHR is accompanied by dizziness, chest pain, shortness of breath, fainting, or palpitations. A single unusual reading is rarely an emergency on its own, but a consistent pattern or accompanying symptoms warrant a conversation with a healthcare provider.

How to Measure Your Resting Heart Rate Correctly

Accurate measurement matters more than most people realise — a rushed or poorly timed reading can easily be off by 10+ bpm. For the most reliable result:

1. Measure first thing in the morning, still lying in bed, before checking your phone, standing up, or having caffeine.
2. Place two fingers (not your thumb, which has its own pulse) on your wrist or neck, over an artery.
3. Count beats for a full 60 seconds for the most accurate reading, or count for 30 seconds and multiply by two if pressed for time.
4. Repeat over 3–5 consecutive mornings and use the average — a single day's reading can be skewed by sleep quality, stress, or hydration the night before.
5. Track the trend over weeks rather than reacting to any single day's number, especially when evaluating whether training is improving your cardiovascular fitness.

For a training-focused follow-up metric, see our Heart Rate Zone Calculator to determine your target heart rate zones for different types of cardio training, and our How to Lower Your Resting Heart Rate Naturally guide for the specific training approaches that reliably reduce RHR over time.