Stroke Volume Estimate Calculator
Enter your cardiac output and heart rate to estimate stroke volume.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
Stroke volume is the amount of blood the heart's left ventricle pumps out with each single beat, measured in milliliters. It relates directly to cardiac output (the total blood volume pumped per minute) and heart rate through the simple identity Stroke Volume = Cardiac Output / Heart Rate — rearranged and scaled to milliliters here to back-calculate SV from CO and HR.
Cardiologists and critical-care clinicians track stroke volume alongside ejection fraction to assess how efficiently the heart is pumping, since a low stroke volume despite a normal heart rate can signal reduced cardiac function — it's a routine figure in echocardiography reports and hemodynamic monitoring in intensive care.
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