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Cardiac Output via the Fick Principle Calculator

CO = VO₂ / (CaO₂ − CvO₂).

Compute cardiac output using the Fick principle: CO = VO₂ / (CaO₂ − CvO₂). VO₂ is oxygen consumption (mL/min); CaO₂ and CvO₂ are arterial and mixed-venous oxygen contents (mL/100 mL). Result is in L/min; conversion factor 100 included.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

mL/min
mL/100mL
mL/100mL

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

CO (L/min) = VO₂ / ((CaO₂ − CvO₂) · 10)

In depth

Compute cardiac output using the Fick principle: CO = VO₂ / (CaO₂ − CvO₂). VO₂ is oxygen consumption (mL/min); CaO₂ and CvO₂ are arterial and mixed-venous oxygen contents (mL/100 mL). Result is in L/min; conversion factor 100 included.