Blood Pressure Classification
ACC/AHA 2017 Hypertension Guidelines · Instant classification & action guide
Enter your blood pressure reading
upper number
/
lower number
All values in mmHg
Patient context
Optional — refines advice
Male
Female
ⓘ For the most accurate reading, the patient should have been seated and resting for at least 5 minutes. Avoid caffeine and exercise for 30 minutes before measurement.
Please enter valid values. Systolic: 60–300. Diastolic: 40–200. Systolic must be higher than diastolic.
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mmHg
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BP spectrum — your position
NormalElevatedStage 1Stage 2Crisis
Systolic
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Diastolic
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Pulse pressure
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Mean arterial
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| Category | Systolic | Diastolic | Action |
|---|---|---|---|
| Normal | < 120 | < 80 | Maintain healthy lifestyle |
| Elevated | 120–129 | < 80 | Lifestyle modification |
| Stage 1 HT | 130–139 | 80–89 | Lifestyle + consider medication |
| Stage 2 HT | ≥ 140 | ≥ 90 | Medication + lifestyle change |
| Crisis | > 180 | > 120 | Seek emergency care immediately |
Recommended action
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Clinical flags
Opens WhatsApp — no commitment required
ⓘ For educational purposes only. Not a substitute for physician judgment.
Classification based on ACC/AHA 2017 Hypertension Guidelines (Whelton PK et al.,
Hypertension 2018;71:e13–e115). A single reading is insufficient for diagnosis.
Hypertension is diagnosed based on the average of two or more readings on two or more occasions.
Heart Rate Zone Calculator
Karvonen Heart Rate Reserve Method · 5-zone personalised exercise prescription
Patient details
18 to 90 years
Male
Female
beats per minute
ⓘ How to measure resting heart rate: Count your pulse for 60 seconds immediately after waking up, before getting out of bed. Or place two fingers on the wrist and count beats for 30 seconds, then multiply by 2.
Primary fitness goal
Fat loss & weight management
Zone 2 focus — fasted cardio friendly
Cardiovascular fitness
Zone 3 focus — heart & lung strength
Cardiac rehabilitation
Zone 1–2 focus — safe gentle recovery
Athletic performance
Zone 4–5 focus — endurance & speed
Please fill in age and resting heart rate correctly.
Max heart rate
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beats / min
Resting HR
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beats / min
HR reserve
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beats / min
Est. VO2 Max
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ml/kg/min
Your 5 personalised heart rate zones
Cardiovascular fitness level
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ml/kg/min VO2 Max
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Exercise prescription
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Opens WhatsApp — no commitment required
ⓘ For educational purposes only. Not a substitute for physician judgment.
Maximum heart rate estimated using the Tanaka formula (208 − 0.7 × age), validated in
Tanaka H et al., Journal of the American College of Cardiology 2001;37:153–156.
Heart Rate Reserve zones based on Karvonen M et al., Annals of Medicine 1957.
VO2 Max estimated from resting heart rate using the Uth–Sørensen equation.
Cardiac patients should obtain physician clearance before beginning any exercise programme.