Blood Pressure Checker
Enter your blood pressure reading to see its category under American Heart Association guidelines. The tool explains what it means and when to see a doctor.
Calculator
This result is an educational estimate, not a diagnosis. Ask your doctor to interpret it.
What does this mean?
Advice for you
How does this calculator work?
The tool classifies your reading using the ACC/AHA 2017 guideline:
| Category | Systolic | Diastolic | |
|---|---|---|---|
| Normal | Below 120 | and | Below 80 |
| Elevated | 120–129 | and | Below 80 |
| Stage 1 | 130–139 | or | 80–89 |
| Stage 2 | 140 or higher | or | 90 or higher |
| Hypertensive crisis | Above 180 | and/or | Above 120 |
Scientific sources
- Whelton PK, et al. 2017 ACC/AHA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults. Hypertension. 2018;71:e13–e115.
- American Heart Association. Understanding Blood Pressure Readings.
Frequently asked questions
What is normal blood pressure?
Below 120/80 mmHg for adults.
Does one high reading mean I have high blood pressure?
No. Blood pressure changes during the day; high blood pressure is diagnosed by repeating measurements at different times.
When is high blood pressure an emergency?
If it is above 180/120 with symptoms such as chest pain, shortness of breath, numbness, vision changes or difficulty speaking — call emergency services immediately.
Can I take blood pressure medicine in Ramadan?
Usually yes, with the timing moved to iftar or suhoor. Don't change your medicine schedule without asking your doctor.