Enter your systolic and diastolic blood pressure readings to find out your blood pressure category — from Low to Stage 2 Hypertension. You can add up to three readings and the tool will calculate your average blood pressure, then classify it against standard clinical ranges. Great for tracking home monitor results before a doctor's visit.
Blood Pressure Category
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Average Systolic BP
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Average Diastolic BP
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Readings Used
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The top number (systolic) measures the pressure in your arteries when your heart beats. The bottom number (diastolic) measures the pressure when your heart rests between beats. Both numbers are expressed in millimetres of mercury (mmHg).
A normal blood pressure reading is generally between 90/60 mmHg and 120/80 mmHg. Readings consistently above 140/90 mmHg are considered high (hypertension), while readings below 90/60 mmHg are considered low (hypotension).
A single reading can be affected by temporary factors like stress, caffeine, or physical activity. Taking two or three readings and averaging them gives a more representative picture of your true blood pressure, which is why clinical guidelines recommend averaging multiple measurements.
Adults should have their blood pressure checked at least every five years. If your reading is in the high-normal or elevated range, more frequent checks are recommended. You should seek medical advice promptly if your reading is consistently above 140/90 mmHg or you experience symptoms like headache, dizziness, or chest pain.
Sit quietly for at least five minutes before measuring. Keep your arm at heart level, with your feet flat on the floor and your back supported. Avoid caffeine, exercise, and smoking for at least 30 minutes beforehand. Take two readings one minute apart and record both values.
Pre-hypertension refers to systolic readings of 120–139 mmHg or diastolic readings of 80–89 mmHg. It is not a disease but a warning sign that you may develop high blood pressure without lifestyle changes. Diet, exercise, reduced salt intake, and limiting alcohol can help bring readings back to normal.
Stage 1 hypertension is defined as systolic BP of 140–159 mmHg or diastolic BP of 90–99 mmHg. Stage 2 hypertension is a systolic reading of 160 mmHg or higher, or diastolic of 100 mmHg or higher. Stage 2 carries a greater risk of cardiovascular complications and typically requires medication in addition to lifestyle changes.
No. This tool is for informational purposes only and cannot diagnose hypertension or any medical condition. A formal diagnosis requires multiple readings taken over time by a qualified healthcare professional, along with consideration of your full medical history.