What is normal blood pressure?

Normal blood pressure is less than 120/80 mmHg. Elevated is 120–129 systolic with diastolic below 80. Stage 1 hypertension is 130–139/80–89, and Stage 2 is 140+ or 90+.

What is mean arterial pressure (MAP)?

MAP is the average pressure in arteries during one cardiac cycle. It is calculated as (systolic + 2 × diastolic) / 3. A normal MAP is 70–100 mmHg. Below 60 mmHg is considered dangerously low.

What is pulse pressure?

Pulse pressure is the difference between systolic and diastolic blood pressure. Normal is 40–60 mmHg. A consistently high pulse pressure (>60 mmHg) can indicate arterial stiffness.

When should I see a doctor for high blood pressure?

You should consult a doctor if readings consistently show Stage 1 hypertension (130/80+) or higher. A hypertensive crisis (>180/120) requires immediate emergency medical care.

Blood Pressure Calculator

Enter your systolic and diastolic readings to get your blood pressure category per AHA 2024 guidelines, mean arterial pressure, risk level, and lifestyle recommendations.

Systolic (mmHg) ?

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Diastolic (mmHg) ?

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BP Category

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Risk Level —

Mean Arterial Pressure —

Extended More scenarios, charts & detailed breakdown ▾

Systolic (mmHg)

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Diastolic (mmHg)

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BP Category

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Risk Level —

MAP (mmHg) —

Pulse Pressure (mmHg) —

Professional Full parameters & maximum detail ▾

Systolic (mmHg)

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Diastolic (mmHg)

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Age

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Smoking

Diabetes

High Cholesterol

Blood Pressure Analysis

AHA 2024 Stage —

Mean Arterial Pressure —

Pulse Pressure —

PP Index —

Risk Assessment

Risk Factor Count —

Overall Cardiovascular Risk —

Clinical Guidance

Medication Consideration —

Lifestyle Recommendation —

How to Use This Calculator

Enter your systolic (top number) and diastolic (bottom number) readings in mmHg.
The calculator shows your AHA blood pressure category, risk level, and mean arterial pressure.
Use the Average tab to average 3 readings for more accuracy.
Use the Log & Compare tab to compare morning vs evening readings.
Use the Professional tab for full risk factor assessment and clinical guidance.

Formula

MAP = (Systolic + 2 × Diastolic) / 3
Pulse Pressure = Systolic − Diastolic
AHA 2024: Normal <120/80 | Elevated 120–129/<80 | Stage 1 130–139/80–89 | Stage 2 ≥140/≥90 | Crisis >180/>120

Example

Example: BP = 132/85 mmHg → Stage 1 Hypertension. MAP = (132 + 2×85)/3 = 100.7 mmHg. Pulse Pressure = 132−85 = 47 mmHg.

Frequently Asked Questions

Normal blood pressure is less than 120/80 mmHg. Elevated is 120–129 systolic with diastolic below 80. Stage 1 hypertension is 130–139/80–89, and Stage 2 is 140+ or 90+.
MAP is the average pressure in arteries during one cardiac cycle. It is calculated as (systolic + 2 × diastolic) / 3. A normal MAP is 70–100 mmHg. Below 60 mmHg is considered dangerously low.
Pulse pressure is the difference between systolic and diastolic blood pressure. Normal is 40–60 mmHg. A consistently high pulse pressure (>60 mmHg) can indicate arterial stiffness.
You should consult a doctor if readings consistently show Stage 1 hypertension (130/80+) or higher. A hypertensive crisis (>180/120) requires immediate emergency medical care.

Related Calculators

Sources & References (5) ▾

Whelton PK et al. — 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults. J Am Coll Cardiol. 2018;71(19):e127-e248 — JACC / ACC / AHA
AHA — Understanding Blood Pressure Readings — American Heart Association
WHO — Hypertension — Key Facts — World Health Organization
Chobanian AV et al. — JNC 7 Express: The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. JAMA. 2003;289(19):2560-72 — JAMA / NIH
MDCalc — Mean Arterial Pressure (MAP) Calculator — MDCalc