Blood Pressure Calculator
Enter your readings to determine your blood pressure category.
| Category | Systolic | Diastolic |
|---|---|---|
| Low | Below 90 | Below 60 |
| Normal | Below 120 | Below 80 |
| Elevated | 120–129 | Below 80 |
| Stage 1 | 130–139 | 80–89 |
| Stage 2 | 140+ | 90+ |
| Crisis | 180+ | 120+ |
Medical Disclaimer:
This tool is for educational purposes only and does not replace medical advice.
Blood Pressure Guide
Blood pressure is one of the most important indicators of heart health. It measures the force of blood pushing against the walls of your arteries as your heart pumps.
Important: This guide helps you understand blood pressure readings but does not replace medical advice.
What Do Blood Pressure Numbers Mean?
A blood pressure reading has two numbers:
- Systolic pressure – pressure when the heart beats.
- Diastolic pressure – pressure when the heart rests between beats.
Example: A reading of 120/80 mmHg means 120 systolic and 80 diastolic.
Blood Pressure Categories
| Category | Systolic | Diastolic |
|---|---|---|
| Low Blood Pressure | Below 90 | Below 60 |
| Normal | Below 120 | Below 80 |
| Elevated | 120–129 | Below 80 |
| Stage 1 Hypertension | 130–139 | 80–89 |
| Stage 2 Hypertension | 140+ | 90+ |
| Hypertensive Crisis | 180+ | 120+ |
Why Blood Pressure Changes
Your blood pressure can change throughout the day depending on activity, stress, diet, and sleep.
- Stress or anxiety
- Physical activity
- Salt intake
- Alcohol consumption
- Sleep quality
Symptoms of High Blood Pressure
High blood pressure is often called a “silent condition” because symptoms are not always obvious.
- Headaches
- Dizziness
- Chest pain
- Blurred vision
- Shortness of breath
If you experience these symptoms with very high readings, seek medical help immediately.
How to Maintain Healthy Blood Pressure
- Exercise regularly
- Reduce salt intake
- Maintain a healthy weight
- Avoid smoking
- Limit alcohol
- Manage stress
Medical Disclaimer
This content is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.