Blood Pressure Calculator
Classify systolic and diastolic readings, pulse pressure and estimated mean arterial pressure
Enter a reading to see the category
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Your explanation appears here
Blood pressure varies with stress, caffeine, exercise, pain, posture and cuff fit. Confirm patterns with proper repeat measurements and a clinician.
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Test how a different reading would change the category without changing your main result.
Calculate your baseline first
It compares systolic and diastolic values with standard adult categories. The higher-risk side determines the final category, because either number can move a reading into a higher range.
No. A diagnosis usually requires accurate technique and repeated readings reviewed by a qualified health professional. Stress, caffeine, exercise, pain, cuff size and posture can change a single reading.
Very high readings around 180 systolic or 120 diastolic need prompt repeat checking and medical guidance. If severe readings come with symptoms such as chest pain, shortness of breath, weakness, numbness, vision changes or difficulty speaking, seek emergency care.
Results are estimates generated locally in your browser from systolic and diastolic values. They are for informational purposes only and are not medical advice, diagnosis, emergency triage or treatment. A clinician should confirm blood pressure patterns and treatment targets. Seek urgent help for severe readings with concerning symptoms, pregnancy-related high readings, fainting, chest pain, shortness of breath, neurological symptoms or any reading that worries you.