Resting Heart Rate Zone Checker

What Is Resting Heart Rate?

Your resting heart rate (RHR) is the number of times your heart beats per minute while you're at complete rest. It's best measured first thing in the morning before getting out of bed. A normal adult RHR ranges from 60 to 100 bpm.

Why Track It?

RHR is a simple but powerful indicator of cardiovascular fitness. A consistently lower RHR generally means better heart efficiency. Tracking trends over time can reveal improvements from exercise or early signs of illness or stress.

Factors That Affect RHR

Caffeine, stress, dehydration, medications, and poor sleep can raise your RHR. Regular aerobic exercise, good hydration, and quality sleep tend to lower it. If your RHR is consistently above 100 bpm or below 40 bpm with symptoms, consult your doctor.

Once you know your resting rate, use the Zone 2 heart rate calculator to turn it into personalized training ranges with the Karvonen method.