PrimeCalcPro
Explore 1070+ free calculators — math, finance, health & more.

Lung Age Calculator

Estimate lung age from FEV1 measurement

🫁Lung Age Calculator (FEV1)

Lung age estimates the age of your lungs from FEV1 spirometry, comparing actual function to predicted function for different ages. Used in smoking cessation — telling a smoker their lungs are 10 years older is more motivating than quoting FEV1%.

  1. 1Predicted FEV1 by sex, age, height (Quanjer equations)
  2. 2Lung age: find the age at which predicted FEV1 equals actual FEV1
FEV1=2.8L · predicted for age 40 is 3.5L (matches 55-yr prediction)=Lung age ≈ 55 (15 years older than actual)Powerful smoking cessation tool

Fun Fact

Showing smokers their calculated lung age reduced smoking rates by 12% compared to just showing FEV1% — demonstrating how framing biological data motivates behaviour change.

🔒
100% Bezpłatny
Bez rejestracji
Dokładny
Zweryfikowane wzory
Natychmiastowy
Wyniki od razu
📱
Przyjazny mobilny
Wszystkie urządzenia

Settings

Theme

Light

Dark

Layout

Language

PrivacyTermsAbout© 2025 PrimeCalcPro