Your resting heart rate is the number of times your heart beats per minute when you’re calm and still. For most adults, a normal reading falls between 60 and 100 beats per minute. You can measure it in under a minute using nothing but two fingers and a clock, though a few details about timing and technique make the difference between an accurate number and a misleading one.
When to Take the Measurement
The best time to check your resting heart rate is first thing in the morning, before you get out of bed. At that point your body hasn’t been influenced by caffeine, physical activity, or the stress of your day. If morning isn’t possible, sit quietly for at least five minutes before measuring, and avoid checking within one to two hours after exercise or a stressful event. Caffeine raises your heart rate and can take about an hour to settle, so wait at least that long after your coffee or tea.
Position matters too. Don’t measure after you’ve been standing or sitting in the same spot for a long stretch, since both can shift your rate. Sitting comfortably with your feet flat on the floor and your back supported is ideal.
The Wrist Method
Turn one hand so your palm faces up. Place the tips of your index and middle fingers from your other hand on the inside of your wrist, in the groove between the bone and the tendon on the thumb side. Press lightly until you feel a steady throb. If you push too hard, you’ll compress the artery and lose the pulse entirely.
Once you feel it clearly, count each beat for a full 60 seconds. That number is your resting heart rate in beats per minute. If you’d rather not count that long, you can count for 30 seconds and multiply by two, or count for 10 seconds and multiply by six. The shorter the count, though, the more a single missed beat throws off your total. A full 60-second count is the most reliable approach.
The Neck Method
If you have trouble finding the pulse at your wrist, try your neck. Place the tips of your index and middle fingers in the soft groove just to one side of your windpipe. You should feel a strong, steady beat from the carotid artery. Use light pressure, the same as with your wrist. Never press on both sides of your neck at the same time, because compressing both carotid arteries can make you dizzy or cause you to faint.
Using a Smartwatch or Fitness Tracker
Most wrist-worn devices use optical sensors to estimate your heart rate, and they’re reasonably accurate at rest. A study published in the Journal of the American College of Cardiology found that at rest, wearable devices were off by an average of about 5 beats per minute compared to a medical-grade ECG in people with a normal heart rhythm. That’s close enough to be useful for daily tracking.
During exercise, the accuracy drops significantly, with errors averaging around 14 beats per minute or more. And for people with irregular heart rhythms like atrial fibrillation, the gap widens further. So if you’re simply logging your resting rate each morning, a smartwatch or fitness band is a reasonable tool. For anything beyond that, a manual check or a chest strap monitor is more dependable.
What Your Number Means
A resting heart rate between 60 and 100 beats per minute is considered normal for adults. Within that range, lower generally signals a more efficient heart. Highly trained endurance athletes often have resting rates in the 40s, and research from the American Heart Association shows that rates as low as 40 bpm are well tolerated in a significant proportion of endurance athletes, with no increased risk of adverse outcomes over more than five years of follow-up. Even rates below 30 bpm have been documented in a small number of elite athletes, though that level sometimes warrants further evaluation.
A resting rate consistently above 100 bpm is called tachycardia. It doesn’t always indicate a problem (anxiety, dehydration, or caffeine can push you over that line temporarily), but a persistently elevated rate is worth discussing with a doctor. A resting rate below 60 bpm is called bradycardia. In the absence of symptoms like dizziness, fatigue, or fainting, a low rate on its own is generally not a concern, especially if you’re physically active.
Factors That Shift Your Rate
Your resting heart rate isn’t a fixed number. It fluctuates day to day based on several factors:
- Caffeine: Chronic intake of 400 mg or more per day (roughly four cups of coffee) has been shown to raise resting heart rate and blood pressure over time. People consuming above 600 mg daily had elevated rates that persisted even after a period of rest following activity.
- Stress and emotions: Your body’s fight-or-flight response releases hormones that speed up your heart. A stressful morning will give you a higher reading than a calm one.
- Temperature: Heat and humidity make your heart work harder. You may see a higher resting rate on a hot day.
- Sleep: Poor sleep or sleep deprivation tends to raise your resting rate the next day.
- Fitness level: As your cardiovascular fitness improves, your heart pumps more blood per beat and your resting rate drops. This is one of the most reliable ways to track aerobic fitness over time.
- Medications: Some medications speed the heart up, others slow it down. If you take any regularly, your baseline may differ from the standard range.
How to Track It Over Time
A single measurement is a snapshot. The real value comes from tracking your resting heart rate over weeks and months. Measure at the same time each day, ideally right after waking, and record the number. A smartphone note, a spreadsheet, or your fitness tracker’s built-in log all work fine.
Over time, you’ll see your personal baseline emerge. A gradual decline usually reflects improving fitness. A sudden or sustained increase of 5 to 10 beats above your norm, without an obvious explanation like illness or stress, can be an early signal that something is off. Overtraining, dehydration, coming down with an infection, or poor recovery from exercise all show up as a creeping resting heart rate before other symptoms appear.
Signs That Warrant Attention
The number alone is less important than how you feel. A resting rate of 55 in someone who runs regularly is perfectly healthy. The same rate in someone who feels faint or exhausted is a different story. Pay attention if a high or low resting heart rate comes with chest pain or discomfort, shortness of breath, dizziness, lightheadedness, or episodes of fainting. Those combinations point to something your heart rate number alone can’t explain.