A regular resting heart rate for adults falls between 60 and 100 beats per minute (bpm). That range applies when you’re sitting or lying down, feeling calm, and not exerting yourself. Your actual number within that window depends on your fitness level, age, medications, and what’s happening in your body at any given moment.
Normal Resting Heart Rate for Adults
Both the American Heart Association and the Mayo Clinic define a normal adult resting heart rate as 60 to 100 bpm. Most healthy adults sit somewhere in the middle of that range, typically between 65 and 85 bpm. A rate consistently at the lower end often signals good cardiovascular fitness, because a stronger heart pumps more blood per beat and doesn’t need to beat as frequently to keep up.
Well-trained endurance athletes can have resting heart rates in the 40s or 50s without any cause for concern. For someone who isn’t particularly active, though, a rate below 60 may indicate bradycardia, a condition where the heart beats too slowly. On the other end, a resting rate above 100 is classified as tachycardia, meaning the heart is beating faster than it should at rest. Neither label automatically means something is wrong, but both warrant attention if they persist or come with symptoms like dizziness, fatigue, or shortness of breath.
Normal Heart Rate by Age in Children
Children’s hearts beat considerably faster than adults’, and the younger the child, the higher the rate. Here’s what’s considered normal when a child is awake:
- Newborn to 3 months: 85 to 205 bpm
- 3 months to 2 years: 100 to 190 bpm
- 2 to 10 years: 60 to 140 bpm
- Over 10 years: 60 to 100 bpm (same as adults)
During sleep, those numbers drop. A sleeping newborn may run 80 to 160 bpm, while a sleeping child over 10 can dip to 50 to 90 bpm. The wide ranges exist because children’s heart rates fluctuate significantly with activity, crying, fever, and growth spurts. By the time a child reaches their early teens, their resting rate settles into the adult range.
What Affects Your Heart Rate
Your resting heart rate isn’t a fixed number. It shifts throughout the day and from one day to the next. Stress, caffeine, excitement, and anxiety all temporarily push it higher. So does being dehydrated, running a fever, or standing up suddenly after sitting for a long time. Hot weather and humidity can raise it too, because your heart works harder to cool your body.
Certain medications have a significant effect. Blood pressure drugs and some heart medications slow the heart rate, sometimes by 10 to 20 bpm or more. Stimulant medications, decongestants, and some asthma inhalers can speed it up. If you’re taking any of these and notice your resting rate sitting outside the normal range, that shift is likely the medication at work rather than a sign of a new problem.
Over weeks and months, your fitness level is the biggest controllable factor. Regular aerobic exercise strengthens the heart muscle, allowing it to pump a greater volume of blood with each contraction. That efficiency translates directly into fewer beats per minute at rest. Someone who starts a consistent exercise routine can see their resting heart rate drop by 5 to 15 bpm over several months.
How to Measure Your Resting Heart Rate
The most accurate time to check is first thing in the morning, before you get out of bed or have coffee. You can use a fitness tracker or smartwatch, but a manual check is simple and reliable.
Place two fingers (your index and middle finger, not your thumb) on the inside of your wrist, just below the base of your thumb. You’re feeling for the radial artery. If you can’t find it there, try the side of your neck just below the jawline, where the carotid artery runs. Once you feel a steady pulse, count the beats for a full 60 seconds. A quicker method is to count for 15 seconds and multiply by four, though the full minute gives a more accurate result, especially if your rhythm feels irregular.
Track your resting rate over several days to get a reliable baseline. A single reading can be thrown off by a bad night’s sleep, a stressful morning, or even a full bladder. The trend over time matters more than any individual number.
Your Heart Rate During Exercise
When you’re working out, your heart rate should climb well above your resting rate. How high depends on the intensity and your age. A common formula for estimating your maximum heart rate is to multiply your age by 0.7 and subtract the result from 208. For a 40-year-old, that works out to roughly 180 bpm.
From that maximum, you can gauge your exercise intensity:
- Moderate intensity: 50% to 70% of your maximum heart rate. This is a brisk walk or easy bike ride where you can hold a conversation but feel your breathing pick up.
- Vigorous intensity: 70% to 85% of your maximum. This is running, fast cycling, or a challenging group fitness class where talking becomes difficult.
For that same 40-year-old with a max of 180, moderate exercise would put the heart rate between 90 and 126 bpm, while vigorous exercise would land between 126 and 153 bpm. These are guidelines, not hard boundaries. Some people naturally run a bit higher or lower. The key is that your heart rate rises with effort and returns to its resting range within a few minutes of stopping.
When Your Heart Rate Signals a Problem
A resting heart rate that consistently sits above 100 or below 60 (in someone who isn’t athletic) deserves a closer look. But the number alone doesn’t tell the whole story. What matters just as much is how you feel and whether the rate is changing over time.
A gradually rising resting heart rate over weeks or months, even if it stays within the “normal” range, can be an early sign of stress on the body. It sometimes reflects poor sleep, chronic stress, overtraining, dehydration, or an underlying condition like thyroid dysfunction or anemia. A sudden spike in resting heart rate during an illness is common and usually resolves as you recover.
Irregular rhythm is a separate concern from rate. If your pulse feels like it’s skipping beats, fluttering, or pounding erratically, that pattern matters regardless of whether the overall rate is normal. Occasional skipped beats are extremely common and usually harmless, but a persistently irregular rhythm is worth investigating.