MAP Calculator — Mean Arterial Pressure

Calculate Mean Arterial Pressure (MAP) using MAP = DBP + 1/3(SBP − DBP) or MAP = (SBP + 2×DBP) / 3, the driving pressure for organ perfusion and a key resuscitation target in shock.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate Mean Arterial Pressure (MAP) using MAP = DBP + 1/3(SBP − DBP) or MAP = (SBP + 2×DBP) / 3, the driving pressure for organ perfusion and a key resuscitation target in shock

Each component has a specific meaning:

  • MAP = DBP + 1/3 or MAP = / 3 — The map = dbp + 1/3 or map = / 3 recorded for the scenario being assessed.
  • Driving pressure — The driving pressure recorded for the scenario being assessed.

Note: Interpret the map calculator result against the thresholds and context described above.

How to Use

Enter the MAP = DBP + 1/3 or MAP = / 3, driving pressure for the scenario you are assessing. Calculate Mean Arterial Pressure (MAP) using MAP = DBP + 1/3(SBP − DBP) or MAP = (SBP + 2×DBP) / 3, the driving pressure for organ perfusion and a key resuscitation target in shock. Use the map calculator result to inform your calculation.

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