Cardiac Output Calculator

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Calculate the volume of blood pumped by the heart per minute.

Input Metrics

Heart Rate

BPM

Stroke Volume

mL/beat

Body Surface Area (Optional)

m²

Disclaimer: This tool is for informational purposes only. Clinical hemodynamic assessment should be performed by medical professionals using diagnostic equipment.

Hemodynamic Analysis

Enter your heart rate and stroke volume to calculate cardiac output.

About this calculator

Overview

Cardiac Output (CO) is the amount of blood the heart pumps through the circulatory system in one minute. It is a vital measure of how well the heart is functioning and meeting the body's oxygen demands.

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Pro Tips

Heart rate can be easily measured by checking your pulse for 60 seconds.
Stroke volume is typically measured using echocardiography (ultrasound of the heart).
A low cardiac output may indicate heart failure or shock, while a very high output could be due to sepsis or hyperthyroidism.
If you know your BSA, calculate the Cardiac Index for a more personalized assessment.

Fun Facts

"A healthy adult at rest has a cardiac output of about 5 liters per minute."
"During intense exercise, cardiac output can increase to 20-25 liters per minute (or even higher for elite athletes)."
"Stroke volume is the amount of blood pumped by the left ventricle in one contraction."
"Cardiac Index (CI) relates cardiac output to body size using Body Surface Area (BSA)."

Formula: Cardiac Output = Heart Rate × Stroke Volume