A normal resting heart rate for an adult falls between 60 and 100 beats per minute (BPM). That’s the standard range used by doctors, and it applies when you’re awake, calm, and sitting still. Where you land within that range depends on your fitness level, age, sex, and what’s happening in your body at the moment.
What Counts as “Resting”
Your resting heart rate is the number of times your heart beats per minute when you’re not exerting yourself. To get an accurate reading, you should be awake, sitting or lying down, and relaxed for at least five minutes beforehand. A reading taken right after climbing stairs or drinking coffee won’t reflect your true baseline.
Most people never check their resting heart rate under these controlled conditions, which is why the number on your fitness tracker at random points during the day can be misleading. If you want a reliable number, measure it first thing in the morning before getting out of bed.
How Age and Sex Shift the Range
Women typically have slightly higher resting heart rates than men. This comes down to heart size: a smaller heart pumps less blood per beat and compensates by beating more frequently. Hormonal differences also play a role. For women, the normal resting range generally falls between 70 and 100 BPM, while for men it sits between 60 and 95 BPM.
Age brings the range down slightly. Adults over 45 tend to have a narrower band at the top end, with both men and women trending toward the lower portion of their respective ranges. A 55-year-old man, for instance, typically falls between 60 and 90 BPM, while a woman of the same age usually falls between 70 and 95 BPM. These shifts are gradual and reflect changes in the heart’s electrical system and overall cardiovascular conditioning over decades.
Why Athletes Have Lower Heart Rates
Highly trained athletes can have resting heart rates as low as 40 BPM, and that’s perfectly healthy. Consistent aerobic exercise strengthens the heart muscle so it pumps more blood with each beat. A more efficient heart simply doesn’t need to beat as often to circulate the same volume of blood. This is one reason cardiologists consider resting heart rate a rough proxy for cardiovascular fitness: a lower number generally signals a stronger, more efficient heart.
If you’re not a trained athlete and your heart rate regularly drops below 60 BPM, that’s worth mentioning to a doctor. For some people, a rate in the 50s is their normal baseline and causes no symptoms. For others, it can cause fatigue, dizziness, or fainting.
When a Heart Rate Is Too Slow
A heart rate below 60 BPM is technically called bradycardia. It’s common during sleep and in fit, healthy young adults, so the number alone doesn’t signal a problem. What matters is whether symptoms come with it. If a slow heart rate causes lightheadedness, unusual fatigue, shortness of breath, or fainting, the heart may not be pumping enough blood to meet your body’s needs.
Common non-worrisome causes include regular endurance training, deep sleep, and certain medications like beta-blockers that intentionally slow the heart. Problematic causes include issues with the heart’s electrical system, thyroid underactivity, and electrolyte imbalances.
When a Heart Rate Is Too Fast
A resting heart rate consistently above 100 BPM is called tachycardia. Temporary spikes above 100 are completely normal during exercise, stress, or after caffeine. The concern is when your heart stays above 100 while you’re sitting still and calm.
Symptoms of tachycardia that warrant attention include a pounding or fluttering sensation in your chest, shortness of breath at rest, dizziness, lightheadedness, chest pain, and unusual fatigue. These symptoms can come and go, which makes them easy to dismiss, but a pattern of recurring episodes is worth investigating.
Very high caffeine intake can push heart rate up and, at extreme doses, has been linked to chest pain and irregular heartbeat. Dehydration, fever, anxiety, anemia, and an overactive thyroid are other common culprits behind a persistently elevated resting rate.
What Your Heart Rate Should Be During Exercise
During moderate-intensity activity like brisk walking, your heart rate should reach about 50 to 70 percent of your maximum. During vigorous exercise like running, the target is 70 to 85 percent of your maximum. A rough estimate of your maximum heart rate is 220 minus your age, so a 40-year-old would aim for roughly 90 to 126 BPM during a moderate workout and 126 to 153 BPM during intense exercise.
These zones help you gauge effort. If you’re well below the moderate zone during a workout, you’re probably not pushing hard enough to see cardiovascular benefits. If you’re consistently above 85 percent of your max, you may be overtraining, especially if you’re just starting an exercise routine.
How to Check Your Pulse Manually
The two easiest spots to feel your pulse are the inside of your wrist and the side of your neck. For your wrist, place the tips of your index and middle fingers on the thumb side, in the groove between the bone and the tendon. For your neck, slide those same two fingers into the soft groove beside your windpipe. Don’t use your thumb, which has its own pulse and can throw off the count.
Once you feel steady beats, count for a full 60 seconds. A quicker method is counting for 15 seconds and multiplying by four, though this is less precise if your rhythm is irregular. Note whether the beats feel evenly spaced. Occasional skipped or extra beats are common and usually harmless, but a consistently irregular pattern is worth discussing with a doctor.
How Accurate Are Fitness Trackers
Smartwatches and fitness bands use light sensors on the skin to estimate heart rate. At rest, in people with a normal heart rhythm, they’re reasonably accurate. A 2024 study in the Journal of the American College of Cardiology found strong agreement between wrist-worn devices and clinical monitors at rest when the heart rhythm was normal.
Accuracy drops off in two scenarios. During exercise, the devices underestimated heart rate by an average of about 7 BPM in people with normal rhythm. For people with an irregular heart rhythm like atrial fibrillation, the gap became much larger: an average underestimate of 17 BPM overall, and at peak exertion, some devices were off by nearly 30 BPM or more. The Apple Watch performed slightly better than other brands in that study, but no consumer device matched clinical equipment during intense exercise with an irregular rhythm.
For everyday tracking of trends in your resting heart rate, a fitness tracker works well. For making medical decisions or monitoring an existing heart condition, a clinical reading is more reliable.
Everyday Factors That Change Your Heart Rate
Your resting heart rate isn’t a fixed number. It fluctuates throughout the day based on a long list of factors. Caffeine, stress, poor sleep, dehydration, heat, illness, and certain medications can all push it higher. Relaxation, good hydration, consistent sleep, and regular aerobic exercise pull it lower over time.
A single high reading after a stressful meeting or a cup of coffee means very little. What’s more informative is the trend. If your resting heart rate has been steadily climbing over weeks or months without an obvious explanation, that’s a signal worth paying attention to. Many fitness trackers now chart this trend automatically, which can be genuinely useful for spotting gradual changes you wouldn’t notice day to day.