Blood Pressure Analyzer

Normal <120/<80, Elevated 120-129/<80, Stage 1 HTN 130-139/80-89, Stage 2 HTN 140+/90+, Crisis 180+/120+. The 2017 AHA/ACC update lowered the hypertension threshold.

The difference between systolic and diastolic (ideal 40-60 mmHg). High pulse pressure suggests arterial stiffness and is an independent cardiovascular risk factor.

Mean Arterial Pressure: (2 x diastolic + systolic) / 3. Ideal range 70-110. Represents the average pressure during one cardiac cycle and is used in critical care to assess perfusion.

Yes, the Blood Pressure Analyzer is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.

Absolutely. The Blood Pressure Analyzer processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Blood Pressure Analyzer is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Blood Pressure Analyzer in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

The Blood Pressure Analyzer uses industry-standard formulas and algorithms to ensure accurate results. However, for critical financial or medical decisions, always consult a qualified professional.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Blood Pressure Analyzer works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

Systolic is the top number and measures the pressure in your arteries when the heart contracts and pushes blood out. Diastolic is the bottom number and measures the pressure between beats, while the heart relaxes and refills. A reading of 120/80 means 120 mmHg systolic over 80 mmHg diastolic. Both numbers matter: the analyzer places a reading in the highest category either value reaches, so 135/78 still counts as Stage 1 because the systolic crosses 130. Systolic tends to rise with age as arteries stiffen and is often the stronger predictor of cardiovascular risk in older adults, while diastolic gets more attention in younger people. Doctors generally consider a healthy resting target to be below 120/80 mmHg. Enter your top and bottom numbers above and the tool classifies them instantly and explains which value triggered the category.

One reading is just a snapshot. Blood pressure swings with stress, caffeine, exercise, posture, and time of day, so a single high number does not confirm hypertension. Home-monitoring guidance generally favors several readings taken over multiple days, ideally morning and evening, before drawing any conclusion. That is why this tool includes a tracking tab: log each reading with its date and time and it shows your 7-day average rather than relying on one measurement. A diagnosis itself belongs to a clinician, who looks at a pattern over weeks, but building a consistent home record gives them better data than a single office visit. For the most consistent numbers, measure at the same times each day, sit quietly for five minutes first, and keep your arm supported. Use the single-reading tab to classify a measurement now, then switch to tracking to log readings over time and watch the 7-day average settle.

This is called white-coat effect: the stress of a clinical setting raises blood pressure temporarily, so a reading taken at the doctor's office can be noticeably higher than the same person's calm reading at home. The reverse, masked hypertension, also happens, where office readings look normal but home readings run high. Because of this gap, home monitoring over several days often reflects your everyday blood pressure more faithfully than a single clinic check. To get reliable home numbers, sit quietly for five minutes first, keep your feet flat and arm supported at heart level, and avoid caffeine or exercise beforehand. Log each measurement in the tracking tab here and the 7-day average smooths out the day-to-day noise, giving you and your doctor a clearer picture than one office reading alone.

The trend detector needs at least four logged readings to work. It sorts your readings by date, splits the log into an earlier half and a later half, and compares the average systolic of each half. If the later average is more than 3 mmHg lower, it labels the trend improving; more than 3 mmHg higher, worsening; and anything within that 3 mmHg band counts as stable. Only systolic is used for the comparison, and the window covers every reading you have logged, not just the last seven days. This keeps a small day-to-day wobble from flipping the label while still flagging a genuine shift. Add four or more readings in the tracking tab to unlock the indicator, and export your full log as a CSV any time you want to share the underlying numbers with your doctor.

Yes. Pulse pressure is simply systolic minus diastolic, and it can sit outside the healthy 40 to 60 mmHg range even when the category looks fine. For example, 118/68 classifies as normal but has a pulse pressure of 50, while 125/65 is only elevated yet carries a pulse pressure of 60. A wide pulse pressure, often driven by a low diastolic or a stiffer aorta, is an independent marker of arterial stiffness and cardiovascular risk, especially in older adults, which is why it deserves attention separately from the overall category. A narrow pulse pressure can appear with certain heart conditions. The analyzer always shows your pulse pressure alongside the category and MAP, so enter a reading above to see all three at once rather than just the headline number.