What is the normal resting heart rate range for adults?

• A. 50-90 beats per minute
• B. 70-110 beats per minute
• C. 90-130 beats per minute
• D. 60-100 beats per minute

Answer: (D)

Resting heart rate is the number of times the heart beats per minute when a person is at rest, not after activity or stress. For adults, the typical resting heart rate falls between 60 and 100 beats per minute. This range is the standard reference used in clinical assessments because it accounts for normal variation due to fitness, age, and autonomic tone, while helping to flag potential issues if measurements consistently fall outside.

If someone consistently measures above 100 at rest, that may indicate tachycardia; if consistently below 60 without symptoms in someone who isn’t highly athletic, it may indicate bradycardia. To measure accurately, rest quietly for several minutes in a comfortable position before taking a reading.

Other ranges are less representative of the general adult population: a lower bound as low as 50 is common in highly trained athletes but not typical for most adults, and a range starting at 70 or 90 or ending at 110–130 would misclassify many normal readings. Therefore, 60–100 beats per minute is the best standard reference.