DLCO Predicted Value Calculator

Calculate the predicted DLCO (diffusing capacity of the lung for carbon monoxide) and percent predicted using GLI-2017 reference equations based on age, height, sex, and ethnicity.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculate the predicted DLCO (diffusing capacity of the lung for carbon monoxide) and percent predicted using GLI-2017 reference equations based on age, height, sex, and ethnicity

Each component has a specific meaning:

  • Capacity of the lung — The capacity of the lung recorded for the scenario being assessed.

Note: Interpret the dlco predicted result against the thresholds and context described above.

How to Use

Enter the capacity of the lung for the scenario you are assessing. Calculate the predicted DLCO (diffusing capacity of the lung for carbon monoxide) and percent predicted using GLI-2017 reference equations based on age, height, sex, and ethnicity. Use the dlco predicted result to inform your calculation.

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Frequently Asked Questions