Cardiology

Mean Arterial Pressure (MAP)

Calculate MAP based on Systolic and Diastolic Blood Pressure.

Parameters

mmHg
mmHg

Mean Arterial Pressure (MAP) Result

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FormulaMAP = (SBP + (2 × DBP)) / 3 Or: MAP = DBP + (1/3 × Pulse Pressure)

Clinical Pearls

A MAP > 65 mmHg is typically considered the minimum necessary to adequately perfuse vital organs (brain, coronary arteries, kidneys). In states of shock or sepsis, maintaining a MAP ≥ 65 mmHg is a common resuscitation target.

Normal Values / Reference

Normal MAP ranges between 70 to 100 mmHg.

Limitations

The formula (SBP + 2DBP)/3 is an estimate. At very high heart rates, diastole shortens more than systole, and true MAP is closer to the arithmetic mean of SBP and DBP. The most accurate way to measure MAP is via an invasive arterial line.