Blood Pressure Calculator

Check your blood pressure category based on your systolic and diastolic readings. See if your blood pressure is normal, elevated, or high.

🩺 Blood Pressure Check

Systolic (mmHg)

Diastolic (mmHg)

Results

CategoryHigh BP Stage 1

Risk LevelModerate-High — consult a doctor

💡 Blood Pressure Categories

Blood pressure is measured in mmHg as systolic/diastolic. Categories: Normal <120/80, Elevated 120-129/<80, High Stage 1: 130-139 or 80-89, High Stage 2: ≥140 or ≥90, Crisis: >180 or >120.

One reading isn't diagnostic — blood pressure varies throughout the day. Measure at the same time daily for a week to get a reliable average. Morning readings (before coffee/medication) are most informative.

120/80 mmHg = Normal. 135/85 = High Stage 1 (lifestyle changes needed). 160/100 = High Stage 2 (medication likely needed).