NIOSH Safety and Health Topic:

Spirometry Training Course

Spirometry Reference Value Calculator

Enter Age, Height, Gender and Race. To see Percent Prediced, you must enter observed FVC, FEV1, and FEF25-75% values in the appropriate boxes. Click Calculate to calculate the predicted values.

Spirometry Training Course

Topic Index:

Spirometry Training Course Main

Spirometry Reference Value Calculator

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Reference Source: Gender: Race:
Age: Height:

Optional Observed Values Below - Enter to calculate Percent Predicted
FVC (L): FEV1 (L): FEF25-75% (L/s): FEV1/FVC%:

Calculated Values
FVC (L)* FEV1 (L)* FEV1/FVC% FEF25-75% (L/s)*

Predicted

Percent Predicted

Lower Limit of Normal

Disclaimer: This calculator is intended for use with the NIOSH Spirometry Workbook exercises and has not been approved by the FDA for clinical use.

Page last updated: January 12, 2007
Page last reviewed: June 3, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)