Circulation and sepsis
Mean arterial pressure
Estimated MAP from systolic and diastolic blood pressure.
For education. Check against your unit's guidance and a second clinician before use.
mmHg
mmHg
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Before you use this
- This is an estimate. An arterial line or an automated cuff measures the mean directly, and that value is more accurate, particularly at fast heart rates.
How this is calculated
- MAP = diastolic + (systolic − diastolic) ÷ 3
Sources
- Standard physiology formula; see any physiology textbook (e.g. Guyton and Hall, Textbook of Medical Physiology).
Checked by PICUlearn, 21 Sept 2026.