The best place to check a pulse in a child depends on the child’s age. For babies under about one year, the inside of the upper arm (the brachial artery) is the go-to spot because a chubby infant neck makes the carotid pulse hard to find. For toddlers and older children, the wrist (radial artery) works well, just as it does for adults. Normal resting heart rates in children are faster than most parents expect and change dramatically with age, dropping from the 120s–140s in a newborn down into the 70s–80s by adolescence. Knowing these numbers and the right technique can save you from unnecessary panic or, conversely, help you spot something that genuinely needs medical attention.
Where to Feel for a Pulse at Each Age
In infants, the brachial pulse is your best bet. You find it by placing two fingertips on the inside of the baby’s upper arm, between the elbow and the shoulder, pressing gently into the soft groove between the bicep and tricep muscles. A study comparing different pulse-check sites in infants with low blood pressure found the femoral pulse (in the crease of the groin) was actually the easiest to detect in that emergency scenario, but the brachial site was nearly as reliable and is far more practical for a parent at home.1PubMed. Comparison of three sites to check the pulse and count heart rate in hypotensive infants A separate study of healthcare workers assessing infant pulses found that brachial palpation was slightly more reliable overall than femoral palpation, with about 78% accuracy versus 77%.2Resuscitation. Reliability of pulse palpation by healthcare personnel to diagnose paediatric cardiac arrest
Once a child is old enough to sit still for a moment and has a wrist big enough to palpate easily, the radial pulse at the wrist becomes practical. Place your index and middle fingers on the thumb side of the inner wrist, just below the crease. Do not use your thumb; it has its own pulse and can confuse the count. The carotid pulse at the side of the neck is another option for older children and teens, though many kids find it uncomfortable when someone presses on their neck.
For the youngest infants, or when you want the most accurate count, you can listen directly to the heartbeat. This is called the apical pulse, and you hear it by placing your ear or a stethoscope against the left side of the chest, just below the nipple. Pediatric nurses sometimes prefer this method because it catches every beat, including any that are too faint to transmit all the way to the wrist.
Normal Resting Heart Rates by Age
Children’s hearts beat faster than adults’ hearts, and the younger the child, the faster the rate. A large systematic review of observational studies covering children from birth to 18 years found that the median heart rate is about 127 beats per minute at birth, climbs to a small peak of roughly 145 beats per minute around one month of age, and then gradually drops to about 113 beats per minute by age two.3PubMed Central. Normal ranges of heart rate and respiratory rate in children from birth to 18 years: a systematic review of observational studies After two, the decline continues more slowly through childhood and into adolescence, eventually approaching adult resting rates in the mid-60s to low-80s range.
Here are rough normal resting ranges by age group. These are approximations drawn from the research; individual children vary, and a child who is slightly outside these numbers is not necessarily in trouble.
- Newborn to 1 month: 120–160 beats per minute
- 1–12 months: 100–150 beats per minute
- 1–3 years: 90–140 beats per minute
- 4–6 years: 80–120 beats per minute
- 7–12 years: 70–110 beats per minute
- 13–18 years: 60–100 beats per minute
That one-month peak is worth noting because many parents bring a healthy four-week-old to the pediatrician alarmed by a heart rate in the 140s. That is right on the median for that age, not a sign of distress.
How to Count Accurately
The mechanics of counting a pulse seem simple, but small technique choices affect accuracy more than you might think. Research on radial pulse counting found that whether you start your count on “zero” or “one” matters. Starting on “one” (meaning you call the first beat you feel “one” and start your timer simultaneously) produced counts much closer to the true heart rate measured by an ECG. Starting on “zero” tended to overcount.4PubMed. A study of the effectiveness of different measuring times and counting methods of human radial pulse rates
As for timing, the gold standard is a full 60-second count, but you can get a reasonable estimate by counting for 30 seconds and doubling the result. A 15-second count multiplied by four is less reliable, especially in children whose rates tend to be high and variable. One study of hospitalized young children found that when the heart rate was under 140 beats per minute, a full 60-second count was the most accurate, but at higher rates a 30-second count performed well.4PubMed. A study of the effectiveness of different measuring times and counting methods of human radial pulse rates For a quick home check on a calm toddler, 30 seconds is a good compromise between patience and precision.
A few practical tips: take the pulse when your child is resting quietly, ideally sitting or lying down for at least a few minutes. Avoid measuring right after a crying spell, a feeding, or active play. If the child is squirming, the reading will jump around and you will end up more confused than when you started.
Why a Child’s Pulse Seems to Jump Around
If you hold your fingers on a child’s wrist for a full minute, you will almost certainly notice that the interval between beats is not perfectly steady. The heart speeds up slightly when the child inhales and slows down when they exhale. This phenomenon, called respiratory sinus arrhythmia, is completely normal. In fact, it is generally a sign of a healthy, well-functioning nervous system in children. A study of school-age children found that roughly 50–60% showed a pronounced version of this heart-rate pattern on any given visit, and the proportion shifted between visits, suggesting it fluctuates as the autonomic nervous system matures.5PubMed Central. Respiratory Sinus Arrhythmia in Children—Predictable or Random?
This normal variability is also why checking a child’s pulse can be confusing for parents. If you count for 15 seconds and multiply by four, the breathing-linked fluctuation can skew your number noticeably. A longer counting window smooths this out. And if you feel what seems like an irregular heartbeat that comes and goes with breathing, that alone is not a reason to worry.
Fever, Crying, and Other Things That Raise the Rate
A child’s resting heart rate is a moving target because so many things push it up temporarily. The most common culprit in a sick child is fever. Studies consistently show that heart rate rises roughly 10 to 14 beats per minute for every 1°C (about 1.8°F) increase in body temperature.6PubMed. Deriving temperature and age appropriate heart rate centiles for children with acute infections A large dataset from emergency departments found the average increase was about 12 beats per minute per degree Celsius, with the effect being slightly larger in younger children (close to 14 extra beats per degree) and slightly smaller in teenagers (about 9 extra beats).7PubMed Central. The association between temperature, heart rate, and respiratory rate in children aged under 16 years attending urgent and emergency care settings
That means a toddler with a normal resting rate of 110 and a temperature of 39.5°C (about 103°F) could easily have a heart rate in the 130s without anything being wrong beyond the fever itself. Parents who check during a febrile illness and see a high number should factor in the temperature before deciding whether the pulse is abnormally fast.
Crying is another big one. In neonates, a bout of vigorous crying raises heart rate by an average of about 19 beats per minute.8PubMed. Cardiopulmonary changes in the crying neonate This is why pediatricians and emergency room nurses try hard to calm a baby before checking vitals. Other everyday factors that speed the heart up include recent physical activity, anxiety, dehydration, and certain medications. The heart rate also follows a circadian pattern: it tends to be lowest during deep sleep and higher during the daytime, a rhythm that becomes more pronounced as a child moves from infancy into early childhood.9PubMed. Circadian rhythm of heart rate and heart rate variability
Medications That Shift the Baseline
One of the most common prescription medications in school-age children that affects heart rate is stimulant medication for ADHD. A review of the evidence found that stimulant-class drugs are associated with average heart rate increases of up to about 10 beats per minute in most children, with a small subset (roughly 5–15%) experiencing a bigger jump at some point during treatment.10Journal of the American Academy of Child & Adolescent Psychiatry. Cardiovascular Risk of Stimulant Treatment in Pediatric Attention-Deficit/Hyperactivity Disorder: Update and Clinical Recommendations A community-based study comparing children with ADHD on stimulants to children without ADHD found the medicated group had an average resting heart rate about 12 beats per minute higher, while children with ADHD who were not on medication showed no difference from the general population.11PubMed Central. What is the effect of ADHD stimulant medication on heart rate and blood pressure in a community sample of children?
A meta-analysis looking at specific drug classes found that amphetamines and atomoxetine both produced small but statistically meaningful increases in heart rate, while methylphenidate did not show a consistent effect on heart rate across trials, though it did raise systolic blood pressure slightly.12PubMed Central. Cardiovascular Effects of Stimulant and Non-Stimulant Medication for Children and Adolescents with ADHD: A Systematic Review and Meta-Analysis of Trials of Methylphenidate, Amphetamines and Atomoxetine If your child takes any of these medications, it helps to know their specific resting baseline so you can interpret a pulse reading in context. Other drugs that can raise heart rate include certain asthma inhalers (albuterol, in particular) and some over-the-counter decongestants.
Athletic Kids and Naturally Slower Rates
Children and teenagers who train regularly in endurance sports often develop resting heart rates well below the typical range for their age. A study of athletic versus non-athletic adolescent boys (ages 15–17) found a mean resting rate of 71 beats per minute in the athletes compared to 82 in the non-athletes.13PubMed. Resting ECG in athletic and non-athletic adolescent boys: correlations with heart volume and cardiorespiratory fitness That 11-beat difference is explained by increased vagal tone, meaning the branch of the nervous system that slows the heart becomes more dominant with regular aerobic conditioning.
So if your 14-year-old competitive swimmer has a resting pulse of 55, that is almost certainly a sign of fitness, not a heart problem. On the other hand, a sedentary teenager with a rate in the 50s who also complains of dizziness or fatigue deserves a closer look. Context matters enormously with pediatric heart rate, and knowing whether a child is a serious athlete is one of the most important pieces of context.
When a Pulse Should Worry You
A heart rate that is persistently too fast (tachycardia) or too slow (bradycardia) at rest, after accounting for fever, activity, crying, and medication, is worth flagging to a doctor. The most common abnormal fast rhythm in children is supraventricular tachycardia (SVT), which originates in the upper chambers of the heart. SVT episodes tend to produce rates well above the normal range for the child’s age and often start and stop abruptly. It is the most common pediatric arrhythmia overall.14PubMed Central. Common Supraventricular and Ventricular Arrhythmias in Children
On the slow end, bradycardia in children most commonly shows up as a slow-but-regular sinus rhythm, though it can also involve abnormal electrical conduction patterns in the heart. It may occur in a structurally normal heart or alongside congenital heart disease.15PubMed. Evaluation and management of bradycardia in neonates and children Signs that a slow or fast pulse needs medical evaluation include the child appearing pale or lethargic, complaining of chest pain or pounding in the chest, fainting or nearly fainting, or having trouble breathing that is not explained by an obvious respiratory infection.
The key practical takeaway: a single reading that seems high or low is not diagnostic. Recheck under calm conditions. If the rate remains outside the expected range once fever, exertion, and emotional state are accounted for, that is the time to call your pediatrician.
Common Mistakes Parents Make When Checking a Pulse
A study that specifically tested how well parents could assess their own children’s vital signs found that parents who palpated the pulse (felt it by hand) underestimated heart rate by an average of 18 beats per minute, with a wide range of error. Some undercounted by more than 50 beats per minute. Auscultation (listening with a stethoscope) fared somewhat better in terms of average accuracy but still had a wide spread of over- and under-estimates. Notably, smartphone apps marketed for pulse measurement did not improve accuracy in this study.16PubMed. Parental Ability to Assess Pediatric Vital Signs
That average undercount of 18 beats is significant. If a child’s true resting heart rate is 130 and a parent measures 112, they might think the rate is normal for a two-year-old when in fact it sits at the higher end. The biggest source of error seems to be pressing too hard (which can actually occlude the artery), pressing too lightly (missing beats), or losing count because the child moves. Practice on yourself first: find your own radial pulse, confirm the count against a clock, and then try on your child once you are comfortable with the technique.
Smartwatches and Consumer Pulse Oximeters in Children
Wearable devices have made real-time heart rate tracking accessible, but their accuracy in children lags behind what you see in adults. An Apple Watch study in pediatric patients found high agreement with a gold-standard monitor during normal heart rhythms below 210 beats per minute, but agreement fell apart during episodes of abnormally fast rhythms.17Heart Rhythm. “But for the blind spot”: Accuracy and diagnostic performance of smart watch cardiac features in pediatric patients The practical limitation is size: most smartwatches are designed for adult wrists, so on a small child they fit loosely, and the optical sensor loses consistent skin contact.
Consumer pulse oximeters, which also report pulse rate alongside oxygen saturation, have their own issues. A study evaluating inexpensive pediatric and smartphone-based oximeters found that the cheap pediatric clip-on device had a large average error in oxygen saturation readings and failed to get a reading entirely in about 7.5% of children tested. The smartphone-based oximeter was worse, failing to produce a reading in nearly 39% of attempts.18PubMed Central. The Accuracy of Readily Available Consumer-Grade Oxygen Saturation Monitors in Pediatric Patients An Apple Watch Series 6 performed better for oxygen saturation in a pediatric sample, with most readings within a couple of percentage points of a hospital-grade device, though outlier errors as large as 15 points did occur, sometimes from poor wrist contact that could be corrected by readjusting the watch band.19PLOS Digital Health. Assessment of Apple Watch Series 6 pulse oximetry and electrocardiograms in a pediatric population
The bottom line on devices: they can give you a useful trend over time if the fit is good, but a single reading from a loose-fitting consumer gadget should not be the basis for a medical decision. When in doubt, go back to fingers on skin and a clock.
Why Heart Rate Norms Are Still Being Refined
You might assume that something as basic as “what is a normal pulse for a five-year-old” would have been settled long ago, but pediatric vital sign reference ranges are surprisingly recent and still debated. Many of the charts printed in textbooks and hung on hospital walls were derived decades ago from relatively small samples. The large systematic review that produced the age-based centile curves cited earlier pooled data from dozens of studies and found that its 50th-centile values sat considerably higher than some older widely used references, while aligning well with other recent datasets.20PubMed. Defining normal ranges and centiles for heart and respiratory rates in infants and children: a cross-sectional study of patients attending an Australian tertiary hospital paediatric emergency department That means the “normal” range your child’s doctor uses may differ slightly from the range listed on a parenting website, not because one is wrong but because the field is still converging on a single standard.
Part of the challenge is that most of the large datasets come from children presenting to emergency departments, who are often sick, anxious, or febrile. Separating a truly “well child at rest” heart rate from the noise of a hospital environment is harder than it sounds. Ongoing research using wearable monitors on healthy children in their homes may eventually provide cleaner reference data, but for now, the ranges listed above are the best available approximations and are more than good enough for a parent trying to decide whether something looks off.