Cardiac Index Calculator

Your details

Choose whether to enter cardiac output directly, or compute it from stroke volume and heart rate.
Total blood pumped by the heart per minute, typically measured by echocardiography or thermodilution.
L/min
Body weight, used to compute body surface area with the Haycock formula.
kg
Standing height, used to compute body surface area with the Haycock formula.
cm
Cardiac Index (CI)Normal
2.98L/min/m²

Cardiac output normalized to body surface area

Cardiac Output (CO)5.5L/min
Body Surface Area (BSA)1.847m²
Stroke Volume (SV)76.4mL/beat
2.98 L/min/m²
Shock risk<2.2Low2.2-2.5Normal2.5-4Elevated4-5High5+

Cardiac Index: 2.98 L/min/m² - Normal

  • A normal cardiac index at rest is 2.5 to 4.0 L/min/m². Your result of 2.98 L/min/m² is classified as: Normal.
  • Your body surface area is 1.847 m² (Haycock formula), which is the denominator that normalizes cardiac output for body size.
  • Underlying cardiac output is 5.50 L/min. Normal resting CO in adults is approximately 4.0 to 8.0 L/min.

Next stepCardiac index is one hemodynamic parameter. Always correlate with blood pressure, mixed venous oxygen saturation, and clinical presentation before drawing conclusions.

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