Mean Arterial Pressure Calculator
Compute MAP from systolic and diastolic readings.
Mean arterial pressure
93 mmHg
typical range
BP category (ACC/AHA)
Stage 1 hypertension
Pulse pressure
40 mmHg
Educational only. Blood-pressure concerns belong with a clinician, and single readings mislead — trends matter.
Why MAP weights diastole
Mean arterial pressure approximates the average pressure driving blood into organs. The heart spends about twice as long in diastole as systole, hence MAP = (systolic + 2×diastolic) ÷ 3. Clinicians target MAP ≥ 65 mmHg to keep organs perfused.
Reading your numbers
Current U.S. categories: normal under 120/80; hypertension begins at 130/80. Measure seated, rested, cuff at heart level, and average several readings across days — a single office reading runs high for many people (white-coat effect).
Frequently asked questions
- How does the Mean Arterial Pressure Calculator work?
- Compute MAP from systolic and diastolic readings.
- Is the Mean Arterial Pressure Calculator free to use?
- Yes. The Mean Arterial Pressure Calculator is completely free, runs entirely in your browser, and requires no account or sign-up. Your inputs never leave your device.
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