SPIROMETRY

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.

Reference Source: Knudson-1976 Hankinson-1999

Gender: Male Female

Race: Caucasian Black Hispanic

Age:

Height: in cm

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.

© Hankinson Consulting, Inc., 11/25/2003; 5/1/2006