Blood Pressure Category Calculator
Enter your systolic and diastolic blood pressure readings to see which general category they fall into.
Blood Pressure Category Calculator
Classifies a blood pressure reading into a general category based on commonly published systolic/diastolic thresholds.
This calculator sorts your systolic and diastolic readings into one of five general categories, from Normal through Hypertensive Crisis, based on commonly published threshold ranges — whichever of the two numbers falls into the more severe category determines your overall classification. It's meant as a quick, general reference to help you understand what a reading might indicate, not a medical diagnosis; blood pressure fluctuates naturally, and any concerning or persistently elevated readings should be discussed with a healthcare provider.
Example
- With the default values shown above, this calculator returns: Category Code ≈ 0; Blood Pressure Category = 0.0.
Frequently Asked Questions
Which number matters more, systolic or diastolic?
Either number being elevated is enough to move you into a higher category — the calculator checks both and uses whichever indicates the more serious category.
What should I do if I'm classified as a Hypertensive Crisis?
Readings in this range warrant prompt medical attention — contact a healthcare provider or emergency services, especially if you also have symptoms like chest pain, shortness of breath, or vision changes.
Does one high reading mean I have hypertension?
Not necessarily — blood pressure varies throughout the day, and a diagnosis is typically based on multiple readings over time taken by a healthcare provider, not a single measurement.
Sources
- Standard formula, publicly documented method