What is Blood Pressure?
Blood pressure is the force exerted by circulating blood against the walls of the body's arteries. It is recorded as two numbers: systolic pressure (the higher number, measured when the heart beats) and diastolic pressure (the lower number, measured when the heart rests between beats). Measurements are given in millimeters of mercury (mmHg).
Monitoring blood pressure is essential for assessing cardiovascular health. Persistent elevation can indicate hypertension, which increases the risk of heart disease, stroke, and kidney problems. Regular monitoring can help you and your healthcare provider determine the best prevention and treatment options for maintaining a healthy blood pressure level.
Understanding your blood pressure readings can empower you to make healthier lifestyle choices. Keeping a healthy weight, reducing salt intake, and incorporating physical activity are just a few ways to improve your blood pressure and overall heart health.
How the Blood Pressure Calculator Works
Enter your systolic and diastolic readings (in mmHg). The calculator evaluates the values using commonly accepted categories and calculates the pulse pressure (systolic minus diastolic). The result updates automatically as you type—no need to press a button.
Category logic (simplified):
- Normal: 120 / < 80 mmHg
- Elevated: 120-129 / < 80 mmHg
- Hypertension Stage 1: 130-139 systolic or 80-89 diastolic
- Hypertension Stage 2: ≥140 systolic or ≥90 diastolic
- Hypertensive Crisis:180 systolic or >120 diastolic — seek emergency care
Example of Blood Pressure Readings
If your reading is 120/80 mmHg (systolic/diastolic):
Systolic = 120, Diastolic = 80Category: Elevated or Borderline (depending on exact thresholds). Pulse Pressure = 40 mmHg.
Tips for Accurate Measurement
- Measure after resting quietly for 5 minutes.
- Sit with back supported, feet flat on the floor, and arm at heart level.
- Take multiple readings over several days for a reliable assessment.
- Avoid caffeine, exercise, and smoking 30 minutes before measuring.
Frequently Asked Questions (FAQs) About Blood Pressure
When should I seek medical attention?
If your systolic is >180 mmHg or diastolic is >120 mmHg, this may be a hypertensive crisis — seek emergency care immediately, especially if you have chest pain, shortness of breath, or neurological symptoms.
What is pulse pressure and why does it matter?
Pulse pressure is the difference between systolic and diastolic pressure. Very high or very low pulse pressures can be associated with cardiovascular issues. Discuss abnormal values with your clinician.
How often should I measure my blood pressure?
Follow your healthcare provider's guidance. For monitoring, many clinicians recommend taking 2-3 readings in the morning and evening for a week to establish a baseline.
What lifestyle changes can help manage blood pressure?
Incorporating healthy habits such as a balanced diet, regular exercise, reducing alcohol, and quitting smoking can significantly impact blood pressure levels positively. Consulting with a dietitian can further personalize these changes.
When to See a Doctor About Blood Pressure
Use this calculator as an informational tool. It does not replace professional medical advice. If you consistently have high readings or experience concerning symptoms, contact your healthcare provider for evaluation and management. Early detection and intervention can significantly improve outcomes for blood pressure-related health issues.