NIOSH Safety and Health Topic:

Spirometry in the Occupational Setting

Spirometry Training Program

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

Topic Index:

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:July 29, 2009
Content Source:National Institute for Occupational Safety and Health (NIOSH) Division of Respiratory Disease Studies