Blood Pressure Category Checker
Enter a systolic and diastolic reading to see which general blood pressure category it falls into, based on commonly used clinical ranges.
Enter both numbers above to see the category.
How these categories work
Blood pressure is written as two numbers: systolic (the pressure while your heart beats) over diastolic (the pressure while it rests between beats). The category below uses whichever number falls into the higher-risk range, since either one can matter on its own.
- Normal: below 120/80
- Elevated: systolic 120 to 129, and diastolic below 80
- High Blood Pressure, Stage 1: systolic 130 to 139, or diastolic 80 to 89
- High Blood Pressure, Stage 2: systolic 140 or higher, or diastolic 90 or higher
- Hypertensive Crisis: above 180/120, needs prompt medical attention
Key takeaway
Getting a more accurate reading
- Sit quietly for a few minutes before measuring, with your back supported and feet flat on the floor
- Keep your arm at heart height, resting on a surface
- Avoid caffeine, exercise, and smoking for at least 30 minutes beforehand
- Take two or three readings a minute apart and use the average
Frequently asked questions
Is this the same as a diagnosis of high blood pressure?
No. A diagnosis is usually based on multiple readings taken over time, often in different settings, not a single number. This tool only shows where one reading falls on commonly used reference ranges.
Why does my reading vary throughout the day?
Blood pressure naturally fluctuates with activity, stress, caffeine, posture, and time of day. A single high or low reading is common and not automatically a cause for concern on its own.
What should I do if I get a Hypertensive Crisis result?
If a reading is very high (180/120 or above) and especially if it comes with symptoms like chest pain, shortness of breath, or vision changes, seek urgent medical care rather than waiting to retest.
This tool gives a general, educational estimate only. It is not medical advice and does not diagnose any condition. Always confirm your results with a qualified healthcare professional, especially before making any change to treatment or medication.
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