A normal resting heart rate for adults falls between 60 and 100 beats per minute. That said, where you land in that range depends on your age, sex, fitness level, and what’s happening in your body at the moment. Here’s what those numbers actually mean for you.
Normal Resting Heart Rate for Adults
When you’re sitting quietly or lying down, your heart should beat somewhere between 60 and 100 times per minute. Most people fall in the middle of that range. Women tend to run slightly faster than men: the average resting rate for adult women is about 79 beats per minute, compared to 74 for men. The difference comes down to heart size. A woman’s heart weighs roughly 25% less than a man’s on average, so it needs to pump faster to move the same volume of blood. Hormones also play a role in keeping female heart rates a few beats higher.
You can check your own resting heart rate by placing two fingers on the inside of your wrist, just below the base of your thumb, and counting the pulses for 15 seconds. Multiply that number by four. For the most accurate reading, do it first thing in the morning before you get out of bed, or after sitting calmly for at least five minutes.
Heart Rate Ranges for Children
Kids’ hearts beat significantly faster than adults’, and the younger the child, the faster the rate. A newborn’s heart can beat anywhere from 85 to 205 times per minute while awake, dropping to 80 to 160 during sleep. Babies and toddlers from 3 months to 2 years typically range from 100 to 190 awake and 75 to 160 asleep.
Between ages 2 and 10, the range starts to narrow: 60 to 140 while awake, 60 to 90 during sleep. By the time a child is older than 10, their resting heart rate looks much like an adult’s at 60 to 100 beats per minute, settling to 50 to 90 during sleep. These wide ranges are normal. A toddler’s heart racing at 170 during a tantrum is perfectly expected physiology, not a sign of a problem.
Why Athletes Have Lower Heart Rates
If your resting heart rate sits below 60, that’s not automatically a concern. Trained athletes and physically active young adults commonly have resting rates between 40 and 60 beats per minute. Their hearts have adapted to push out more blood with each beat, so they don’t need to beat as often to deliver the same amount of oxygen.
This is one reason a single number can’t tell the whole story. A resting rate of 50 in a competitive runner is a sign of excellent cardiovascular fitness. A resting rate of 50 in someone who’s sedentary and feeling dizzy is a different situation entirely.
What Affects Your Heart Rate
Your resting heart rate isn’t fixed. It shifts throughout the day and across weeks depending on several factors:
- Caffeine and stimulants: Caffeine blocks a chemical that normally helps keep your heart rhythm steady, which can push your rate up temporarily.
- Alcohol: Even moderate drinking increases nervous system activity and can raise your heart rate or trigger irregular rhythms.
- Stress and anxiety: Your body’s fight-or-flight response releases adrenaline, which speeds up your heart.
- Temperature: Heat makes your heart work harder to cool your body. You may notice a faster pulse on hot days or after a hot shower.
- Medications: Blood pressure drugs, especially beta-blockers, are designed to slow your heart rate. Some asthma inhalers can speed it up. If you’ve noticed a change after starting a new medication, that’s a common explanation.
- Sleep and recovery: Your heart rate drops during sleep, often 10 to 20 beats below your daytime resting rate. Poor sleep or illness can keep it elevated.
- Fitness level: Regular aerobic exercise gradually lowers your resting rate over weeks and months as your heart becomes more efficient.
Too Fast or Too Slow
A resting heart rate consistently above 100 beats per minute is called tachycardia. A rate consistently below 60 (in someone who isn’t athletic or on heart-slowing medication) is called bradycardia. Neither one is a diagnosis on its own. They’re signals that something may be going on, from dehydration or an overactive thyroid to an electrical issue in the heart itself.
Symptoms worth paying attention to include a fluttering, pounding, or racing sensation in your chest, lightheadedness, unusual fatigue, or feeling like your heart is skipping beats. Chest pain, shortness of breath, or fainting alongside an unusual heart rate are more urgent and warrant immediate medical attention.
Heart Rate During Exercise
Your heart rate is supposed to climb during physical activity. The traditional formula for estimating your maximum heart rate is 220 minus your age. So a 40-year-old would have an estimated maximum of 180 beats per minute. For moderate exercise like brisk walking, you’d aim for 50% to 70% of that maximum (90 to 126 for a 40-year-old). Vigorous exercise like running pushes you into the 70% to 85% range (126 to 153).
That classic formula has limitations. Research from the Norwegian University of Science and Technology found that “220 minus age” can underestimate maximum heart rate by as much as 40 beats per minute in older adults, and starts losing accuracy as early as your 30s. Their updated formula, based on testing over 3,300 healthy adults aged 19 to 89, is 211 minus 0.64 times your age. For a 40-year-old, that gives a maximum of about 185 rather than 180. The gap widens with age: a 70-year-old gets 166 with the newer formula versus 150 with the old one.
These are still estimates. If you’re using heart rate to guide your workouts, the most practical approach is paying attention to how you feel. During moderate exercise, you should be able to talk but not sing. During vigorous exercise, you can only get out a few words at a time before needing a breath.
Tracking Changes Over Time
A single heart rate reading is less useful than a trend. If you wear a fitness tracker or check your pulse regularly, look at the pattern over weeks and months. A gradually declining resting heart rate usually means your cardiovascular fitness is improving. A sudden or sustained increase, especially one that doesn’t match a change in activity, stress, or medication, is worth investigating.
Your resting heart rate is one of the simplest vital signs you can monitor at home, and small shifts in either direction can reflect real changes in your health, fitness, or daily habits long before other symptoms show up.