The simplest way to find your BPM (beats per minute) is to press two fingers against your wrist, count the beats for 30 seconds, and multiply by two. That gives you your heart rate with an average error of only about 1 beat per minute. Here’s exactly how to do it, what your number means, and how to use it during exercise.
How to Check Your Pulse at the Wrist
Your wrist is the easiest and most reliable spot to check your heart rate at home. Find the groove between the bone and the tendon on the thumb side of your wrist. Place the tips of your index and middle fingers from your other hand into that spot and press gently until you feel a steady throb. Don’t use your thumb, which has its own pulse and can throw off your count.
If you can’t feel anything, adjust the pressure or slide your fingers slightly toward the center of your wrist. Flexing the wrist back a little can also make the pulse easier to find. Once you have a clear beat, you’re ready to count.
Counting and Calculating Your BPM
You have three options: count beats for 10 seconds and multiply by 6, count for 15 seconds and multiply by 4, or count for 30 seconds and multiply by 2. The shorter the count, the bigger the potential error. A 10-second count is off by about 2.5 BPM on average. A 15-second count drops that to roughly 1.9 BPM. A 30-second count is the most accurate at around 1 BPM of error, which is close enough for any practical purpose.
If you’re in a hurry during a workout, a 10-second count is fine for a quick check. For a true resting heart rate measurement, use the full 30 seconds. Start your count on “zero” when the timer begins, not “one,” so you don’t overcount by a beat.
Getting an Accurate Resting Heart Rate
Your resting heart rate is the number that tells you the most about your baseline cardiovascular fitness, but it’s easy to get a skewed reading. A few things to keep in mind before you measure:
- Wait after exercise or stress. Don’t measure within one to two hours of a workout or a stressful event. Your heart rate stays elevated longer than you might expect.
- Skip the caffeine window. Wait at least an hour after coffee, tea, or energy drinks. Caffeine raises your heart rate and can cause palpitations that make counting difficult.
- Don’t sit or stand too long beforehand. Staying in one position for a long stretch can shift your reading. The best time is first thing in the morning, after waking but before getting out of bed.
Take the measurement two or three mornings in a row and average the results. That gives you a more reliable baseline than any single reading.
What Your Resting BPM Means
A normal resting heart rate for adults falls between 60 and 100 BPM. Most healthy people land somewhere in the 60s to 80s. Well-trained endurance athletes often sit closer to 40 BPM because their hearts pump more blood with each beat and don’t need to beat as frequently.
A resting rate consistently below 60 is called bradycardia. That’s not always a problem. If you’re fit and feel fine, a low number simply reflects an efficient heart. But if a low rate comes with dizziness, fatigue, or fainting, it’s worth investigating. On the other end, a resting rate consistently above 100 at rest is called tachycardia and can signal anything from dehydration and anxiety to a heart rhythm issue.
Tracking your resting BPM over weeks and months is more useful than obsessing over a single reading. A gradual decline usually means your fitness is improving. A sudden, sustained jump of 10 or more beats from your baseline can be an early sign of illness, overtraining, or poor sleep.
Using BPM During Exercise
Your maximum heart rate gives you a ceiling for exercise intensity. The standard formula is simple: subtract your age from 220. A 35-year-old, for example, has an estimated max of 185 BPM. This is a rough estimate, not a precise limit, but it’s useful for building workout zones.
For moderate-intensity exercise (a brisk walk, easy cycling, or a casual swim), aim for 50% to 70% of your max. For vigorous exercise (running, HIIT, competitive sports), aim for 70% to 85%. Using the same 35-year-old example, moderate intensity would be roughly 93 to 130 BPM, and vigorous intensity would be about 130 to 157 BPM.
General guidelines suggest building up to 2 hours and 30 minutes per week of moderate activity, or 1 hour and 15 minutes of vigorous activity. Checking your BPM mid-workout tells you whether you’re actually hitting those zones or just guessing based on how you feel, which gets less reliable as you get fitter.
Devices vs. Manual Checks
Fitness watches and phone apps use optical sensors to read your pulse through the skin. They’re convenient for continuous monitoring during workouts, but they’re not always accurate, especially during high-intensity movement when the watch shifts on your wrist. Chest strap monitors tend to be more precise because they detect electrical signals from the heart rather than reading blood flow through the skin.
For a resting heart rate, a manual check is just as accurate as any consumer device. It’s also a good way to verify whether your wearable is reading correctly. If your watch says 72 and your manual count says 88, the watch may not be fitting snugly enough or the sensor may need cleaning.
For exercise monitoring, a wearable is more practical since stopping to count your pulse interrupts your workout and your heart rate drops quickly once you stop moving. If you don’t own a device, pause briefly, find your pulse within a few seconds, and do a quick 10-second count. Multiply by 6 and you’ll have a close enough number to guide your effort.