Home Back

Mean Arterial Pressure Calculator

MAP Equation:

\[ MAP = \frac{SBP + 2 \times DBP}{3} \]

mmHg
mmHg

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Mean Arterial Pressure?

Mean Arterial Pressure (MAP) is the average arterial pressure throughout one cardiac cycle. It's a better indicator of perfusion to vital organs than systolic blood pressure alone.

2. How Does the Calculator Work?

The calculator uses the standard MAP equation:

\[ MAP = \frac{SBP + 2 \times DBP}{3} \]

Where:

Explanation: The equation accounts for the fact that diastole lasts longer than systole in the cardiac cycle.

3. Importance of MAP Calculation

Details: MAP is crucial for assessing blood flow to organs. A MAP of at least 60 mmHg is necessary to maintain adequate perfusion of vital organs.

4. Using the Calculator

Tips: Enter valid systolic and diastolic blood pressure values in mmHg. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal MAP range?
A: Normal MAP is typically between 70-100 mmHg. Below 60 mmHg may indicate inadequate perfusion.

Q2: Why is MAP important in critical care?
A: MAP is used to guide treatment in shock and hypertension, as it better reflects organ perfusion than systolic pressure alone.

Q3: How does MAP differ from blood pressure?
A: Blood pressure gives systolic and diastolic values, while MAP represents the average pressure throughout the cardiac cycle.

Q4: When is MAP most useful?
A: MAP is particularly important in managing critically ill patients and assessing perfusion in various clinical scenarios.

Q5: Can MAP be measured directly?
A: Yes, MAP can be measured directly via arterial line monitoring, but the formula provides a good estimate from standard BP measurements.

Mean Arterial Pressure Calculator© - All Rights Reserved 2025