Mean Arterial Pressure Calculator
Calculate Mean Arterial Pressure (MAP) — the average blood pressure perfusing your organs across a complete cardiac cycle.
What is Mean Arterial Pressure?
MAP represents the average pressure throughout the cardiac cycle, weighted toward diastole because the heart spends two thirds of each beat in diastole. Maintaining MAP above 65 mmHg is critical for adequate organ perfusion; below this, kidneys and brain begin to suffer.
How is it calculated?
MAP = DBP + (SBP − DBP) / 3. Normal range: 70–100 mmHg. ICU teams target ≥ 65 mmHg in shock states.
Frequently Asked Questions
- Why weight diastolic more?
- The heart spends more time in diastole than systole.
- How is MAP measured directly?
- Arterial line in ICU/operating-room settings.
- What if MAP is too high?
- Sustained MAP > 110 mmHg increases stroke risk.