A normal resting heart rate for adults falls between 60 and 100 beats per minute (bpm). That’s measured while you’re awake, calm, and sitting still. Where you land within that range depends on your age, fitness level, stress, and several other factors. Below is a full breakdown of what’s normal across age groups, what pushes your heart rate up or down, and how to check yours accurately.
Normal Resting Heart Rate by Age
Children’s hearts beat significantly faster than adults’. A baby under one year old averages around 129 bpm, and heart rate gradually slows as the body grows. Here’s what the data from a large national health survey shows for each age group:
- Under 1 year: 103 to 156 bpm (average 129)
- 1 year: 95 to 138 bpm (average 118)
- 2 to 3 years: 86 to 124 bpm (average 107)
- 4 to 5 years: 75 to 114 bpm (average 96)
- 6 to 8 years: 68 to 105 bpm (average 87)
- 9 to 11 years: 63 to 101 bpm (average 83)
- 12 to 15 years: 58 to 98 bpm (average 78)
- 16 to 19 years: 54 to 95 bpm (average 75)
- Adults (20+): 60 to 100 bpm
These ranges represent the 5th to 95th percentile, meaning 90% of healthy people in each age group fall within them. If your child’s pulse sits outside these numbers but they feel fine and have no other symptoms, it doesn’t necessarily signal a problem, but it’s worth mentioning at a checkup.
What Affects Your Heart Rate
Your heart rate isn’t a fixed number. It shifts throughout the day based on what your body needs. When you’re relaxed or sleeping, it slows down. When you’re active, stressed, or startled, your nervous system triggers a burst of adrenaline that speeds it up so your muscles get more blood and oxygen.
Beyond moment-to-moment changes, several factors influence your baseline resting rate:
- Fitness level: Regular aerobic exercise strengthens the heart muscle, allowing it to pump more blood per beat. This means it doesn’t need to beat as often at rest. Well-trained endurance athletes can have resting rates in the 40s or 50s, which is perfectly healthy for them.
- Stress and anxiety: Chronic stress keeps your fight-or-flight system more active, which tends to raise resting heart rate over time.
- Caffeine and stimulants: Coffee, energy drinks, and certain medications can temporarily increase your rate.
- Temperature: Heat and humidity force your heart to work harder to cool your body, pushing your pulse higher.
- Medications: Some drugs (like beta-blockers) lower heart rate, while others (like decongestants or certain asthma medications) raise it.
- Age: Resting heart rate naturally changes as you age, and the beat-to-beat variability in your heart rate tends to decrease in older adults.
- Medical conditions: Diabetes, high blood pressure, heart rhythm disorders, and even depression and anxiety can all influence resting heart rate.
How to Check Your Pulse
You don’t need any equipment. Sit down and rest quietly for a few minutes first so you get a true resting measurement. Then pick one of two spots:
At your wrist: Turn your palm face-up. Place the tips of your index and middle fingers on the inside of your wrist, between the bone and the tendon on the thumb side. Press lightly until you feel the beat. Count the beats for a full 60 seconds using a clock or timer.
At your neck: Place two fingertips in the groove next to your windpipe, on one side only. Never press on both sides at the same time, as this can make you dizzy or faint. Press gently and count for 60 seconds.
In both cases, press just hard enough to feel each beat. Pushing too firmly can actually block blood flow and give you an inaccurate count. Smartwatches and fitness trackers offer a convenient alternative, though a manual check is a good way to verify their accuracy.
Too Fast or Too Slow
A resting heart rate consistently above 100 bpm in an adult is called tachycardia. It can happen from dehydration, fever, caffeine, anxiety, or an underlying heart rhythm issue. On its own, a slightly elevated rate isn’t always dangerous, but when it persists without an obvious cause it deserves attention.
A resting rate below 60 bpm is called bradycardia. For athletes and physically active people, this is often a sign of excellent cardiovascular fitness. For someone who isn’t particularly active, a consistently low rate could indicate a problem with the heart’s electrical system, especially if it comes with fatigue or lightheadedness.
The numbers alone don’t tell the whole story. What matters more is whether an unusual heart rate comes with symptoms. Shortness of breath, chest pain, discomfort spreading to your arms, neck, or jaw, excessive sweating, dizziness, fainting, or feeling lightheaded alongside a fast or irregular heartbeat are all signals that need prompt medical evaluation. Occasional skipped beats or brief flutters that don’t affect your daily life are common and typically harmless.
Heart Rate During Exercise
Your heart rate naturally climbs during physical activity, and tracking it can help you gauge workout intensity. The American Heart Association recommends these target zones:
- Moderate intensity: 50% to 70% of your maximum heart rate
- Vigorous intensity: 70% to 85% of your maximum heart rate
To estimate your maximum heart rate, the most widely cited formula is 220 minus your age. A more accurate version, developed from a large research review published in the Journal of the American College of Cardiology, is 208 minus (0.7 times your age). For a 40-year-old, that works out to a maximum of about 180 bpm using the classic formula, or 180 bpm with the updated one (they converge near age 40 but diverge at younger and older ages).
So a 40-year-old aiming for moderate exercise would target roughly 90 to 126 bpm. For vigorous exercise, the range would be about 126 to 153 bpm. If you’re just starting an exercise routine, aim for the lower end and build up gradually. These zones are designed to condition the heart without overworking it.
You can check your pulse mid-workout using the same wrist or neck method, or rely on a heart rate monitor for continuous tracking. Keep in mind that your personal zones may differ if you take medications that affect heart rate, like beta-blockers.