The Cardiac Stroke Volume calculator computes the volume blood pumped in one stroke based on the end diastolic and systolic volumes .
INSTRUCTIONS: Choose units and enter the following:
- (EDV) End Diastolic Volume
- (ESV) End Systolic Volume
Cardiac Stroke Volume (SV): The calculator returns the output volume in milliliters. However this can be automatically converted to compatible units via the pull-down menu.
The Math / Science
The volume blood pumped by the heart in one stroke is the difference between the end diastolic volume and the end systolic volume, in particular by a left or right ventricle in the time interval of one stroke. The formula for the stroke volume of a heart is
`SV = EDV-ESV`
where:
- SV = Stroke Volume which is the amount of blood pumped from one ventricle of the heart through one beat
- EDV = End-diastolic volume
- ESV = End-systolic volume
Systolic and Diastolic Volume
End Diastolic Volume (EDV) is the volume of the ventricle before the heart contracts. End Systolic Volume (ESV) is the ventricle volume after blood has been ejected from the heart.
The typical end diastolic volume for a the average male is 120 milliliters of blood, and 50 milliliters of end-systolic blood.
