Blood Pressure Calculator
Analyze your blood pressure readings and understand your cardiovascular health risk with personalized recommendations.
Calculator
Enter your information to calculate results
Top number (pressure when heart beats)
Bottom number (pressure when heart rests)
How It Works
Blood pressure is measured in millimeters of mercury (mmHg) and recorded as two numbers: systolic over diastolic pressure.
Understanding the Numbers
- Systolic Pressure (Top Number): Pressure when your heart beats and pumps blood
- Diastolic Pressure (Bottom Number): Pressure when your heart rests between beats
Blood Pressure Categories
| Category | Systolic | Diastolic |
|---|---|---|
| Normal | Less than 120 | Less than 80 |
| Elevated | 120-129 | Less than 80 |
| Stage 1 | 130-139 | 80-89 |
| Stage 2 | 140 or higher | 90 or higher |
| Crisis | Higher than 180 | Higher than 120 |
Examples
Example Readings
Normal Reading
This reading indicates normal blood pressure. Continue healthy lifestyle habits.
Elevated Reading
Elevated systolic pressure. Focus on lifestyle modifications to prevent hypertension.
Stage 1 Hypertension
High blood pressure requiring medical consultation and lifestyle changes.
Stage 2 Hypertension
Serious hypertension requiring immediate medical attention and likely medication.
Factors Affecting Blood Pressure
- Time of Day: BP typically lower in morning, higher in evening
- Physical Activity: Exercise temporarily raises BP
- Stress: Can cause temporary spikes
- Caffeine: May temporarily increase BP
- Medications: Some drugs affect blood pressure
- White Coat Syndrome: Higher readings at doctor's office
Compare
Blood Pressure vs Other Health Metrics
| Metric | What It Measures | Healthy Range |
|---|---|---|
| Blood Pressure | Force of blood against artery walls | Less than 120/80 mmHg |
| Resting Heart Rate | Beats per minute at rest | 60-100 bpm |
| Cholesterol | Fat levels in blood | Less than 200 mg/dL |
| Blood Sugar | Glucose levels in blood | 70-100 mg/dL (fasting) |
Lifestyle Modifications
Diet Changes
- • Reduce sodium intake
- • Increase potassium-rich foods
- • Follow DASH diet
- • Limit processed foods
Exercise
- • 150 minutes moderate activity/week
- • Strength training 2x/week
- • Walking, swimming, cycling
- • Gradual increase in intensity
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