# 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

where,

h is height

m is Measured FEV_{1}

Enter patients gender, height, and measured FEV_{1.0,} then derive the age for which that FEV_{1.0} value is 100% predicted.