The normal resting heart rate range for adults is 60 to 100 beats per minute. Resting heart rate is measured while a person is awake, calm, and free from recent exercise or stimulation. The rhythm normally begins in the sinoatrial node, the heart’s natural pacemaker, while the autonomic nervous system adjusts its speed.
The familiar 60–100 range is a widely used clinical convention, including by the American Heart Association. It does not mean every healthy person must fall inside it at every moment. Fitness, age, medications, hormones, temperature, stress, and illness can all shift the pulse. Well-trained athletes may have resting rates below 60 without having heart disease.
A common mix-up is confusing resting rate with heart rate during exercise, fever, fear, or caffeine use. A rate above 100 at rest is generally called tachycardia, while a rate below 60 is called bradycardia. Doctors interpret either finding alongside symptoms, rhythm, and medical history rather than treating one number as a diagnosis.