How to use it
- Enter air pressure in pascals.
- Enter absolute temperature in kelvin.
- Calculate density in kg/m³.
Air Density Calculator
Estimate ideal dry-air density from an entered pressure and absolute temperature.
Important: This calculator is an educational estimate only. It is not aviation, navigation, flight planning, fuel or reserve planning, aircraft or rocket design, certification, launch, propulsion, mission, weapon, maintenance, legal, regulatory, emergency, operational, or safety advice.
About the Air Density Calculator
This calculator applies an ideal dry-air relationship to an entered pressure and absolute temperature.
Formula
ρ = p ÷ (R × T), using R = 287.05 J/(kg·K) for dry air.
Example
At 101,325 Pa and 288.15 K, the idealized result is approximately 1.225 kg/m³.
Notes
Humidity, composition and local atmospheric conditions are excluded. The result is not aircraft-performance or aviation-safety data.