Gas Density Calculator

Calculates gas density from gram molecular weight.

Inputs

Color mode links each input to the matching equation term and solving arithmetic.

Equation and Work

Equation:
Solving steps:
Gas density
—
g/L
GMW
—
g/mol
Reference gas
—
O₂ ≈ 1.43 g/L

Clinical Significance

Gas density estimates grams per liter from gram molecular weight. The constant 22.4 L is the approximate molar volume of an ideal gas at standard temperature and pressure.

Gas density helps explain flow behavior and why lower-density gas mixtures such as heliox can reduce turbulent-flow resistance.

This simplified calculation assumes standard molar volume of 22.4 L.

References (APA 7th Edition)

  1. Chang, D. W. (2020). Respiratory Care Calculations (Revised 4th ed.). Jones & Bartlett Learning. Formula content adapted from the uploaded text/reference packet.