You can check your heart rate at home in under a minute using nothing more than two fingers and a clock. Place the tips of your first two fingers on the inside of your wrist, just below the base of your thumb, and count the beats you feel over 60 seconds. That number is your heart rate in beats per minute (bpm). There are also several devices and apps that can do this automatically, but the manual method remains reliable and costs nothing.
How to Take Your Pulse by Hand
The easiest spot to find your pulse is the radial artery, which runs along the thumb side of your inner wrist. Use the tips of your index and middle fingers, not your thumb (your thumb has its own pulse and can throw off the count). Press lightly over the groove until you feel a steady throb.
Once you’ve found the beat, count the number of pulses for a full 60 seconds. You can also count for 15 seconds and multiply by four, but if the rhythm feels uneven or skips around, stick with the full minute for a more accurate result. The neck is another option: press gently alongside your windpipe, in the soft groove just below your jawline. Use light pressure here, since pressing too hard on this artery can actually slow your heart rate.
Getting an Accurate Resting Reading
Your resting heart rate is the most useful number to track over time, but getting a true resting measurement requires a bit of setup. The best time to check is first thing in the morning, after a full night of sleep and before you get out of bed or drink coffee. If that’s not possible, sit in a quiet spot for at least five minutes before measuring to let your heart rate settle.
Several things can temporarily raise or lower your reading. Caffeine, nicotine, and alcohol can all push your heart rate up. So can stress, dehydration, a hot room, or a recent meal. On the other side, certain medications like beta-blockers are designed to slow the heart and will give you a lower number than your unmedicated baseline. For the most consistent tracking, try to measure under similar conditions each time.
What’s a Normal Resting Heart Rate?
For adults 18 and older, a normal resting heart rate falls between 60 and 100 bpm. If you exercise regularly, your resting rate may sit in the 50s or even the 40s, which is perfectly healthy. A well-trained heart pumps more blood per beat, so it doesn’t need to beat as often at rest.
Children have naturally faster heart rates. Newborns range from 100 to 205 bpm, toddlers from 98 to 140, and school-age kids from 75 to 118. By adolescence (ages 13 to 17), the range settles into the adult zone of 60 to 100 bpm.
A resting rate consistently above 100 bpm at rest (called tachycardia) or below 50 bpm with symptoms like dizziness, fatigue, or fainting spells is worth bringing up with a doctor. A low number alone isn’t necessarily a problem, but when it comes with lightheadedness, confusion, or feeling like you might pass out, the heart may not be pumping enough blood to keep up with your body’s needs.
Using a Smartphone App
Many free smartphone apps can measure your pulse using only your phone’s camera and flash. You place your fingertip over the rear camera lens, and the flash shines light into your skin. With each heartbeat, blood flow changes the amount of light absorbed and reflected. The app detects these tiny fluctuations and calculates your heart rate from the pattern.
This technique, called photoplethysmography, is surprisingly accurate when done correctly. A 2024 review in Frontiers in Digital Health looked at 10 validation studies and found agreement between smartphone readings and medical-grade electrocardiograms ranged from good to very strong, with correlations as high as 0.98 to 1.0. The key is holding your finger still against the camera for the full measurement period. Movement, cold fingers, or pressing too hard can all reduce accuracy.
Using a Home Blood Pressure Monitor
If you already own a digital blood pressure cuff, it displays your pulse alongside your blood pressure reading every time you take a measurement. These monitors use pressure sensors in the cuff to detect the same arterial pulsations, so you get a heart rate number without any extra effort.
One concern people have is whether these monitors work well for those with an irregular heartbeat. Research published in an American Heart Association journal found that atrial fibrillation (the most common type of irregular rhythm) does increase the variability between individual readings, but the accuracy holds up when you take three consecutive measurements and use the average. If you know you have an irregular rhythm, that three-reading approach makes a meaningful difference.
Using a Smartwatch or Fitness Tracker
Wrist-worn devices like the Apple Watch, Fitbit, and Garmin use the same light-based technology as smartphone apps, but they measure continuously from green LEDs on the underside of the watch. The convenience is obvious: you can track your resting rate over days and weeks without thinking about it, and most devices will alert you if your rate spikes above or drops below thresholds you set.
Accuracy is generally solid at rest but less reliable during intense exercise. A comparative study from RIT found that optical wrist sensors matched chest-strap readings closely most of the time, but errors occasionally reached 8% during moderate activity and up to 17% during more vigorous movement. Wrist placement matters too. Wearing the watch snugly about one finger-width above your wrist bone gives the sensor the best contact with your skin. Loose bands, tattoos, and heavy wrist hair can all interfere with the light signal.
Spotting an Irregular Rhythm
Checking your heart rate at home isn’t just about the number. It’s also an opportunity to notice the rhythm. When you take your pulse by hand, pay attention to whether the beats feel evenly spaced. A healthy pulse has a steady, predictable cadence, like a metronome. An occasional skipped beat is common and usually harmless, but a rhythm that feels consistently chaotic, with no pattern to the spacing, can be a sign of atrial fibrillation.
Wearable devices and some smartphone apps can also flag irregular rhythms. Atrial fibrillation produces a distinctly “irregularly irregular” pattern that these tools are well suited to detect. Other warning signs worth noting include a sudden jump to a very fast rate or a sudden drop to a very slow one that doesn’t correspond to anything you’re doing physically. A heart rate that shoots up while you’re sitting on the couch, or drops sharply for no reason, is more concerning than one that rises during a brisk walk.
Calculating Your Target Heart Rate for Exercise
If you’re checking your pulse during workouts, you’ll want to know your target zone. The simplest formula, recommended by the American Heart Association, starts with subtracting your age from 220 to estimate your maximum heart rate. A 40-year-old, for example, has an estimated max of 180 bpm. Moderate-intensity exercise typically falls between 50% and 70% of that max (90 to 126 bpm for a 40-year-old), while vigorous exercise lands between 70% and 85% (126 to 153 bpm).
To check mid-workout, pause briefly and count your pulse for 15 seconds, then multiply by four. If you’re wearing a fitness tracker, you can simply glance at the screen. These zones are estimates, not hard boundaries. How you feel matters too. If you can hold a conversation but are breathing noticeably harder than normal, you’re likely in the moderate range regardless of what the math says.