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Calculator: Systemic vascular resistance in adults

Calculator: Systemic vascular resistance in adults

Mean aortic pressure  
Right atrial pressure  
Systemic flow  

Important: Inputs must be complete to perform calculation.

SVR   dynes-sec-cm-5


  • In most cases, Systemic flow is equivalent to the cardiac output.
  • Normal SVR is approximately 1170 plus or minus 270 dynes-sec-cm-5.
  • In most cases, the Mean aortic pressure is equivalent to the mean arterial pressure, which can be obtained from most hemodynamic monitors.
  • For information on the use of the SVR, please see UpToDate topic reviews on the use of vasopressors and inotropes and on intraoperative transesophageal echocardiography.
  • SVR: systemic vascular resistance.

Equations used
SVR = 80 * ( Mean_aortic_pressure - Right_atrial_pressure) / Systemic_flow


Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.

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Topic 13460 Version 10.0