Home Back

Blood Pressure Calculator

Blood Pressure Classification:

Blood Pressure Chart

mmHg
mmHg

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Blood Pressure Calculator?

Definition: This calculator classifies blood pressure readings based on systolic and diastolic measurements in mmHg.

Purpose: It helps individuals and healthcare professionals quickly assess blood pressure status according to standard guidelines.

2. How Does the Calculator Work?

The calculator uses standard blood pressure classification guidelines:

CategorySBP (mmHg)DBP (mmHg)
Normal<120<80
Elevated120-129<80
Stage 1 Hypertension130-13980-89
Stage 2 Hypertension≥140≥90
Hypertensive Crisis>180>120

Explanation: The classification is determined by comparing your readings to these standard ranges.

3. Importance of Blood Pressure Monitoring

Details: Regular blood pressure monitoring helps detect hypertension early, reducing risk of heart disease, stroke, and other complications.

4. Using the Calculator

Tips: Enter your systolic (top number) and diastolic (bottom number) blood pressure readings in mmHg. Measurements should be taken at rest.

5. Frequently Asked Questions (FAQ)

Q1: What do SBP and DBP stand for?
A: SBP = Systolic Blood Pressure (pressure when heart beats), DBP = Diastolic Blood Pressure (pressure between beats).

Q2: How often should I check my blood pressure?
A: Adults should check at least annually; more frequently if you have hypertension or risk factors.

Q3: What's considered a normal blood pressure?
A: Below 120/80 mmHg is considered normal for adults.

Q4: When should I see a doctor about my blood pressure?
A: If readings are consistently ≥130/80 mmHg, or if you experience symptoms like headaches or dizziness.

Q5: Can this calculator diagnose hypertension?
A: No, this is for informational purposes only. Diagnosis requires multiple readings and professional evaluation.

Blood Pressure Calculator© - All Rights Reserved 2025