# Density of an Ideal Gas

## Density of an Ideal Gas formula |
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\(\large{ \rho = \frac {M \; p_{atm} }{R \; T_a} }\) | ||

Symbol |
English |
Metric |

\(\large{ \rho }\) (Greek symbol rho) = density of an ideal gas | \(\large{\frac{lbm}{ft^3}}\) | \(\large{\frac{kg}{m^3}}\) |

\(\large{ T_a }\) = absolute temperature | \(\large{R}\) | \(\large{K}\) |

\(\large{ p_{atm} }\) = atmospheric pressure | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |

\(\large{ M }\) = molar gas | \(\large{ft^3}\) | \(\large{m^3}\) |

\(\large{ R }\) = molar gas constant | \(\large{\frac{lbf-ft}{lbmol-R}}\) | \(\large{\frac{J}{kmol-K}}\) |