## How do you calculate the density of air?

Density is a measure of mass. The formula for density is d = m/v, where d is the density, m is the mass, and v is the volume.

## What is standard air density?

According to the International Standard Atmosphere (ISA) values—15° C at sea level—the density of dry air is at: In Metric units: 1.225 kg/m^3.

**What is the density of air at 20000 ft?**

U.S. Standard Atmosphere Air Properties – Imperial (BG) Units

Geo-potential Altitude above Sea Level – h – (ft) | Temperature – t – (oF) | Density – ρ – (10-4 slugs/ft3) |
---|---|---|

5000 | 41.17 | 20.48 |

10000 | 23.36 | 17.56 |

15000 | 5.55 | 14.96 |

20000 | -12.26 | 12.67 |

### What is the density of cold air?

At 101.325 kPa (abs) and 15 °C, air has a density of approximately 1.225 kg/m3 (or 0.00237 slug/ft3), about 1/1000 that of water according to ISA (International Standard Atmosphere).

### How cold is it at 100000 feet?

U.S. Standard Atmosphere Air Properties – Imperial (BG) Units

Geo-potential Altitude above Sea Level – h – (ft) | Temperature – t – (oF) | Dynamic Viscosity – μ – (10-7 lb s/ft2) (10-7 slug /(ft s)) |
---|---|---|

90000 | -56.54 | 3.052 |

100000 | -51.10 | 3.087 |

150000 | 19.40 | 3.511 |

200000 | -19.78 | 3.279 |

**What is the density at 11000 ft altitude?**

0.3639 kilograms per cubic meter

The tropospheric tabulation continues to 11,000 meters (36,089 ft), where the temperature has fallen to −56.5 °C (−69.7 °F), the pressure to 22,632 pascals (3.2825 psi), and the density to 0.3639 kilograms per cubic meter (0.02272 lb/cu ft).

## What does 1 Litre of air weigh?

1 liter is 1,000 cc. Therefore the weight of 1 liter of air at sea level is approximately 1.225 grams.