Blood Pressure Calculator
Check your blood pressure category based on American Heart Association guidelines.
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Your Blood Pressure Category
Blood pressure categories
Blood pressure is measured in mmHg (millimeters of mercury). The top number (systolic) is pressure when your heart beats. The bottom number (diastolic) is pressure when your heart rests.
Elevated: Systolic 120-129 AND Diastolic <80
High BP Stage 1: Systolic 130-139 OR Diastolic 80-89
High BP Stage 2: Systolic ≥140 OR Diastolic ≥90
Hypertensive Crisis: Systolic >180 OR Diastolic >120 (seek emergency care)
FAQs
What is normal blood pressure?
Normal is below 120/80 mmHg. This means low risk of heart disease and stroke.
When should I worry about my BP?
See a doctor if your BP is consistently 130/80 or higher. Seek emergency care if it's over 180/120.
How can I lower my blood pressure?
Eat less salt, exercise regularly, lose weight if overweight, limit alcohol, manage stress, and quit smoking.
Can one high reading mean I have high BP?
No. Blood pressure changes throughout the day. You need multiple high readings to diagnose hypertension.
Should I measure BP at home?
Yes! Home monitoring gives a better picture than one doctor's visit. Measure at the same time daily.