###### Request a Tool

# Lung Capacity Calculator

#### Input

#### Output

#### Formula

**IRV**= Inspiratory reserve volume**TV**= Tidal volume**ERV**= Expiratory reserve volume**delayed HU**= delayed phase Hounsfield units**RV**= Residual volume

#### Defination / Uses

The lung capacity calculator helps you determine the respiratory volumes of your or your case's lungs.

Calculate total lung capacity( TLC), vital capacity( VC), inspiratory capacity( IC), and functional residual capacity( FRC). The tool uses four lung volume measures from spirometry, a ventilatory pulmonary function test.

Total lung capacity( TLC) is the complete sum of the air volume in one's lungs. It can be calculated simply by adding up all the measured lung volumes. The normal value range for grown-ups is 5 to 7 liters. It depends on age, relations, height, mass, and race.

Vital capacity( VC) is the volume of air that we can expel from the lungs after a minimum inhalation. The lung capacity calculator finds it by adding together the inspiratory reserve volume, tidal volume, and expiratory reserve volume. The typical value range for grown-ups is 3 to 5 liters. We can estimate the read value of this capacity predicated on a case's coitus, age, and height.

**VC = IRV + TV + ERV**

Inspiratory capacity( IC) is the maximum volume of air that can be scarfed by the case without a forced exhalation beforehand. The inspiratory capacity is calculated by adding the inspiratory reserve volume and the tidal volume. The normal range of inspiratory capacity is around 2 to 4 liters.

**IC = IRV + TV**

Functional residual capacity( FRC) is the volume of air that remains in our lungs during the whole process of normal breathing in a relaxed state without forcing the exhalation. It's the sum of the expiratory reserve volume and tidal volume. A normal FRC should be around 2 liters.

**FRC = ERV + RV**