MAP Calculator
Calculate Mean Arterial Pressure and assess cardiovascular health
Calculate Mean Arterial Pressure
⚠️ Medical Disclaimer: This calculator is for educational purposes only and should not replace professional medical advice. Always consult with a healthcare provider for proper blood pressure evaluation and treatment.
Normal: 90-119 mmHg
Normal: 60-79 mmHg
Standard unit: mmHg
Example Calculation
Normal Blood Pressure Example
Blood Pressure: 120/80 mmHg
Formula: MAP = (SBP + 2 * DBP) ÷ 3
Calculation: (120 + 2 * 80) ÷ 3 = (120 + 160) ÷ 3 = 93.3 mmHg
Pulse Pressure: 120 - 80 = 40 mmHg
MAP Reference Ranges
Clinical Significance
Organ Perfusion
MAP ≥ 60 mmHg needed for adequate perfusion
Brain Blood Flow
Cerebral autoregulation maintains flow
Kidney Function
Renal perfusion depends on adequate MAP
Important Notes
MAP better predicts tissue perfusion than systolic BP alone
Diastolic pressure contributes more to MAP (2/3 weight)
Used in critical care and surgical monitoring
Target MAP ≥ 65 mmHg in septic shock patients
Understanding Mean Arterial Pressure
What is Mean Arterial Pressure?
Mean Arterial Pressure (MAP) is the average pressure in arteries during one cardiac cycle. It represents the pressure that drives blood flow to organs and tissues throughout the body. MAP is considered a better indicator of perfusion pressure than systolic blood pressure alone.
Why is MAP Important?
- •Determines adequate organ perfusion pressure
- •Critical for brain, kidney, and heart function
- •Used in critical care and anesthesia monitoring
- •Guides treatment in shock and hypotension
MAP Formula Explanation
MAP = (SBP + 2 * DBP) ÷ 3
- SBP: Systolic Blood Pressure (peak pressure)
- DBP: Diastolic Blood Pressure (baseline pressure)
- 2/3 Weight: Diastole lasts ~2/3 of cardiac cycle
- 1/3 Weight: Systole lasts ~1/3 of cardiac cycle
Clinical Applications
- •ICU monitoring and vasopressor management
- •Surgical blood pressure management
- •Sepsis and shock treatment protocols
- •Cerebral perfusion pressure calculations
MAP in Medical Conditions
Septic Shock
Target MAP ≥ 65 mmHg with vasopressors to maintain organ perfusion
Head Injury
Monitor MAP to calculate cerebral perfusion pressure (CPP = MAP - ICP)
Surgery
Maintain MAP > 60-70 mmHg to ensure adequate organ perfusion