Breath-by-Breath VCO2 Calculator: Carbon Dioxide Production Rate

Calculate Your Breath-by-Breath VCO2

Expired Minute Ventilation (V_E)

L/min

The total volume of air exhaled per minute.

Fractional Concentration of CO2 in Expired Air (FeCO₂)

Percentage of carbon dioxide in the air exhaled.

Fractional Concentration of CO2 in Inspired Air (FiCO₂)

Percentage of carbon dioxide in the air inhaled (typically ~0.03% for ambient air).

Output Unit for VCO₂

Easily calculate the Volume of Carbon Dioxide (VCO2) produced per minute with our accurate online calculator. Ideal for physiologists, athletes, and clinicians, this tool simplifies the assessment of metabolic CO2 output based on expired ventilation and CO2 concentrations.

Formula:

The formula for calculating the Volume of Carbon Dioxide (VCO2) is based on expired minute ventilation and the fractional concentrations of carbon dioxide in inspired and expired air:

VCO₂ = V_E × (FeCO₂ - FiCO₂)

VCO₂: Volume of Carbon Dioxide produced per minute (L/min)
V_E: Expired Minute Ventilation (L/min)
FeCO₂: Fractional concentration of Carbon Dioxide in expired air (as a decimal, e.g., 4% = 0.04)
FiCO₂: Fractional concentration of Carbon Dioxide in inspired air (as a decimal, e.g., 0.03% = 0.0003)

Breath-by-Breath VCO2 Calculator: Carbon Dioxide Production Rate

Calculate Your Breath-by-Breath VCO2

Calculation Result:

Formula:

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