Enter the air pressure, water vapor pressure, and air temperature into the air density calculator. The calculator will display the current air density at those conditions.
Air Density Formula
The following formula is used to calculate air density.
ρ = (pd / (Rd * T)) + (pv / (Rv * T))
where:
- pd is the pressure of dry air in Pa,
- pv is the water vapor pressure in Pa,
- T is the air temperature in Kelvins,
- Rd is the specific gas constant for dry air equal to 287.058 J/(kg·K), and
- Rv is the specific gas constant for water vapor equal to 461.495 J/(kg·K).
Air Density Definition
Air density is the density of air in any specific temperature and pressure.
How to calculate air density?
How to calculate air density
- First, determine the pressure of dry air
This can be calculated using a formula, or using a table for air pressure at certain temperatures.
- Next, determine the water vapor pressure
This is dependent on the relative humidity.
- Measure the air temperature
Measure the air temperature and convert it to Kelvin.
- Calculate the air density
Calculate the air density using the formula above.
FAQ
Air density if the total mass of air within a given volume.
Air density can change with temperature and pressure. Increase pressure and temperature both increase density because they are forcing more air into a smaller volume.


Related Terms
air density calculator |
air density formula |
how to calculate air density |
air density altitude calculator |
air density equation |
how to find density of air |
air density calculator excel |
us standard atmosphere calculator |
atmospheric density equation |
calculate air density from pressure and temperature |
dry air density calculator |
air density temperature calculator |
density altitude humidity calculator |
atmospheric density calculator |
1976 standard atmosphere calculator |
air density correction factor formula |
air density calculation formula |
calculate air density from temperature and pressure |
how to calculate air density from temperature and pressure |
find density of air |
humid air density calculator |
air density calc |
how to calculate air density at altitude |
moist air density calculator |
air density online calculator |
air density calculator pressure temperature |
how to calculate density of air with temperature and pressure |
how do you find the density of air |
air density formula altitude |
how to find density of air given temperature and pressure |
how to determine the density of air |
how do you calculate the density of air |
how do you calculate air density |
compressed air density calculator |
density altitude calculator without dew point |
how to determine air density |
how to calculate density of air at different altitudes |
how to determine density of air |
density of air calculation formula |
relative air density calculator |
air density kg m3 calculator |
density of air at different temperatures and pressures calculator |
calculate density of air at different temperatures |
density of air altitude calculator |
isa density calculator |
isa standard atmosphere calculator |
air density factor formula |
how to calculate vapour density of air |