Mean Arterial Pressure (MAP)
Medical context
Compute mean arterial pressure from systolic and diastolic blood pressure.
ICU teams apply this alongside hemodynamic data, labs, and serial exams — not as a stand-alone decision rule.
This page explains the MAP formula, how to interpret the output, known limitations, and peer-reviewed references so you can verify results against primary sources and local protocols.
It is grouped under Critical Care because icu severity scores and organ dysfunction tools.
How to use this calculator
- Enter the values requested by the MAP calculator using the units shown beside each field.
- Review the calculated result and read the interpretation section before acting on the output.
- Check limitations and references if the result will change management, dosing, or disposition.
- Use the related calculators section when you need supporting values (for example electrolytes, weight, or complementary risk scores).
Calculator
Result
93 mmHg
MAP = (SBP + 2×DBP) / 3
Educational use only. Confirm results with clinical judgment, primary sources, and local protocols. Not a substitute for professional medical advice. Full disclaimer.
Formula
MAP = (SBP + 2×DBP) / 3
Interpretation
Many septic shock protocols target MAP ≥65 mmHg, individualized to patient.
Limitations
Noninvasive cuff MAP may differ from arterial-line measurements.
Frequently asked questions
- Why weight diastolic pressure more?
- Diastole occupies roughly two-thirds of the cardiac cycle at normal heart rates.
- Is the MAP result enough to make a treatment decision?
- No. Calculators support medical decision-making but do not replace examination, shared decision-making, institutional protocols, or consultant input when stakes are high.
- Does Calcmedical store the values I type in?
- Inputs are processed in your browser for this session. We do not ask for patient names or medical record numbers. See our privacy policy for hosting and analytics details.
References
- Surviving Sepsis Campaign blood pressure targets