Cardiac Output, MAP & SVR Calculator

Compute cardiac output, mean arterial pressure and systemic vascular resistance from heart rate, stroke volume and arterial pressure readings.

Heart rate (bpm)

Stroke volume (mL/beat)

Systolic BP (mmHg)

Diastolic BP (mmHg)

Central venous pressure (mmHg)

How to Use the Cardiac Output, MAP & SVR Calculator

Enter heart rate and stroke volume.
Enter systolic, diastolic and central venous pressure.
Click Calculate.

使用场景

•Critical care teaching.
•Cardiology homework.
•Anaesthesia exam prep.

公式

CO = HR × SV. MAP = DBP + (SBP − DBP) / 3. SVR = (MAP − CVP) × 80 / CO.

常见问题

Is the MAP formula exact?

It is the standard clinical approximation for heart rates around 60–100 bpm. At very high rates the diastolic portion shortens and the simple 1/3 weighting underestimates MAP.

Why is SVR multiplied by 80?

To convert (mmHg · min / L) into the Woods unit dyn·s·cm⁻⁵ used in intensive care hemodynamics.

Medical disclaimer

Educational only. Hemodynamic management requires invasive monitoring, clinical context and expert judgement.