Ejection Fraction Calculator
Percentage of blood the left ventricle pumps each beat.
Your result
Normal ejection fraction is roughly 52–72%. Values are measured by echocardiogram, MRI or similar imaging; this calculator only does the arithmetic.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Ejection Fraction Calculator do?
Percentage of blood the left ventricle pumps each beat. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: ejection fraction calculator; heart pumping percentage; ef from volumes.