How it's calculated
MAP = DBP + (SBP − DBP) ÷ 3
MAP = mean arterial pressure (mmHg), SBP = systolic (top), DBP = diastolic (bottom). (SBP − DBP) is the pulse pressure.
Reference ranges
| MAP (mmHg) | Reading |
|---|---|
| Below 60 | Too low, organs may be underperfused |
| 70 to 100 | Normal range |
| Above 100 | Elevated |
Common questions
How is MAP calculated?
MAP is the diastolic pressure plus one third of the pulse pressure, which is the gap between systolic and diastolic.
Why does MAP matter more than just blood pressure?
MAP reflects the steady pressure that keeps blood flowing to organs, so clinicians watch it to be sure tissues stay well perfused.