Mean Arterial Pressure: Why Clinicians Use It
MAP shows whether organs get enough blood flow.
What MAP is
Mean arterial pressure is the average pressure in arteries over a cardiac cycle. It is estimated as diastolic plus one third of the pulse pressure.
Why it matters
Organs such as kidneys and brain need a MAP of at least about 65 mmHg. Doctors in hospitals watch it in sepsis and shock.
At home
Home users rarely need MAP, but it helps to understand why a very low reading with dizziness needs attention.
Try it: Mean Arterial Pressure Calculator
Example with sample values. Open the full calculator →
A MAP of 70–100 mmHg is considered normal.
Educational content only. This article does not replace advice from a qualified health professional. Medical disclaimer.