A Step By Step Spirometry Lung Age Calculation

 Lung Age Calculator

This online smoking Cessation calculator will help you to convince patients to stop smoking.

Step by Step calculation

Formula To Calculate Lung Age:

Lung Age for Female = ((0.0342 x h) - 1.578 - m) / 0.0255

Lung Age for Male = (0.0414 x h - 2.19 - m) / 0.0244


h is height

m is Measured FEV1

Enter patients gender, height, and measured FEV1.0, then derive the age for which that FEV1.0 value is 100% predicted.