Blood Pressure
120/80
Classification
Stage 1 Hypertension
MAP
93 mmHg
Pulse Pressure
40 mmHg
Pressure when your heart beats (normal: below 120)
Pressure between heartbeats (normal: below 80)
Optional: your resting heart rate in beats per minute
Blood Pressure
120/80
mmHg
MAP
93
mmHg (Normal)
Pulse Pressure
40
mmHg (Normal)
Mean Arterial Pressure
Normal range: 70–100 mmHg
93.3
Normal
Pulse Pressure
Normal range: 40–60 mmHg
40
Normal
Risk Level
Based on AHA/ACC 2017 guidelines
Adopt the DASH diet (rich in fruits, vegetables, whole grains)
Reduce sodium intake to under 2,300 mg/day
Exercise 30 minutes most days of the week
Maintain a healthy weight (BMI 18.5–24.9)
Discuss 10-year cardiovascular risk with your doctor
Inputs
Result
SBP 115 < 120 and DBP 75 < 80, so classification is Normal. MAP = 75 + (115 – 75) / 3 = 75 + 13.3 = 88.3 mmHg (normal range). Pulse Pressure = 115 – 75 = 40 mmHg (normal).
Inputs
Result
SBP 135 is in range 130–139 and DBP 85 is in range 80–89, classifying as Stage 1 Hypertension. MAP = 85 + (135 – 85) / 3 = 85 + 16.7 = 101.7 mmHg (slightly above normal). Pulse Pressure = 135 – 85 = 50 mmHg (normal).
Inputs
Result
SBP 155 ≥ 140, so classification is Stage 2 Hypertension regardless of DBP. MAP = 95 + (155 – 95) / 3 = 95 + 20 = 115.0 mmHg (elevated). Pulse Pressure = 155 – 95 = 60 mmHg (upper bound of normal).
A normal blood pressure reading is below 120/80 mmHg according to the AHA/ACC 2017 guidelines. The top number (systolic) measures pressure when the heart beats, and the bottom number (diastolic) measures pressure between beats. Both numbers must be below the threshold for a normal classification.
| Category | Systolic (mmHg) | Diastolic (mmHg) | Risk Level |
|---|---|---|---|
| Normal | < 120 | < 80 | Low |
| Elevated | 120–129 | < 80 | Moderate |
| Stage 1 HTN | 130–139 | 80–89 | High |
| Stage 2 HTN | ≥ 140 | ≥ 90 | Very High |
| Crisis | > 180 | > 120 | Emergency |
Mean Arterial Pressure (MAP) estimates the average blood pressure in your arteries during one cardiac cycle. It is calculated as DBP + (SBP – DBP) / 3. A normal MAP ranges from 70 to 100 mmHg. MAP below 60 may indicate insufficient organ perfusion, while MAP above 100 suggests increased cardiac workload.
Pulse pressure is the difference between systolic and diastolic blood pressure (SBP – DBP). A normal pulse pressure is 40–60 mmHg. Wide pulse pressure (above 60 mmHg) may indicate stiff arteries or aortic valve regurgitation, while narrow pulse pressure (below 40 mmHg) can signal reduced cardiac output.
| Pulse Pressure | Classification | Possible Causes |
|---|---|---|
| < 40 mmHg | Narrow | Low cardiac output, shock, heart failure |
| 40–60 mmHg | Normal | Healthy cardiovascular function |
| > 60 mmHg | Wide | Arterial stiffness, aortic regurgitation, aging |
For accurate home readings, sit quietly for 5 minutes with your back supported, feet flat on the floor, and arm at heart level. Use a validated upper-arm cuff monitor. Take 2–3 readings one minute apart and record the average. Avoid caffeine, exercise, and smoking for 30 minutes before measuring.
See a doctor immediately if your reading exceeds 180/120 mmHg (hypertensive crisis), especially with symptoms like chest pain, vision changes, or shortness of breath. Schedule a visit if readings consistently exceed 130/80 mmHg on multiple occasions, or if elevated readings persist despite lifestyle changes.
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Last Updated: Mar 9, 2026
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