Map Bp Calculator

Mean Arterial Pressure (MAP) Calculator

Accurately determine the average arterial pressure during a single cardiac cycle.

Your Mean Arterial Pressure is: 0 mmHg

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What is Mean Arterial Pressure (MAP)?

Mean Arterial Pressure (MAP) is a critical clinical measurement that represents the average pressure in a person's arteries during one full cardiac cycle. Unlike a standard blood pressure reading that gives you two distinct numbers—systolic and diastolic—the MAP provides a single value that helps healthcare professionals understand how well vital organs are being perfused (supplied with blood).

The MAP Formula

Because the heart spends approximately two-thirds of the cardiac cycle in the relaxation phase (diastole) and only one-third in the contraction phase (systole), the calculation is weighted toward the diastolic pressure. The formula used by this calculator is:

MAP = [Systolic BP + (2 × Diastolic BP)] / 3

Why is MAP Important?

MAP is often considered a better indicator of organ perfusion than systolic blood pressure alone. In clinical settings, such as intensive care or emergency medicine, maintaining a specific MAP is vital to ensure that the brain, kidneys, and heart receive enough oxygenated blood. Generally, a MAP of at least 60 to 70 mmHg is required to maintain adequate perfusion to the vital organs.

Interpreting Your Results

• Normal Range: A typical MAP range for a healthy adult is usually between 70 and 100 mmHg.
• Low MAP: If the MAP drops below 60 mmHg for an extended period, it can lead to organ failure because the organs are not receiving enough blood.
• High MAP: A MAP above 100 mmHg may indicate high cardiovascular stress and could lead to complications such as blood clots or heart damage over time.

Example Calculation

If your blood pressure reading is 120/80 mmHg:

1. Multiply the diastolic pressure (80) by 2: 80 × 2 = 160.
2. Add the systolic pressure (120): 160 + 120 = 280.
3. Divide the total by 3: 280 / 3 = 93.33 mmHg.

Disclaimer: This calculator is for educational purposes only and should not replace professional medical advice. Always consult with a doctor regarding your blood pressure readings.