MAP Calculator

Calculate Mean Arterial Pressure for organ perfusion assessment. Also includes Pulse Pressure and Shock Index.

Vital Signs

Systolic Blood Pressure

mmHg

The top number in a blood pressure reading. Represents the peak pressure when the heart contracts (systole). Normal adult range: 90-120 mmHg.

Diastolic Blood Pressure

mmHg

The bottom number in a blood pressure reading. Represents the resting pressure when the heart relaxes (diastole). Normal adult range: 60-80 mmHg.

Heart Rate (for Shock Index)

bpm

Beats per minute. Used to calculate Shock Index (HR/SBP). Normal resting heart rate: 60-100 bpm.

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Mean Arterial Pressure

— mmHg

Enter blood pressure values

Pulse Pressure

— mmHg

Normal: 30-50 mmHg | Normal

Shock Index

—

Clinical Reference Ranges

MAP

• Normal: 70-100 mmHg
• Minimum for perfusion: 60-65
• ICU target: >65 mmHg

Pulse Pressure

• Normal: 30-50 mmHg
• Widened: >60 (AR, sepsis)
• Narrowed: <25 (shock)

Shock Index

• Normal: 0.5-0.7
• Elevated: 0.7-1.0
• Critical: >1.0 (shock)

The Formulas

MAP

(SBP + 2×DBP) / 3

= (120 + 2×80) / 3 =

Pulse Pressure

SBP - DBP

= 120 - 80 =

Shock Index

HR / SBP

= 72 / 120 =

Frequently Asked Questions