Air Density Calculator
Calculate Air Density
Calculate air density based on temperature, atmospheric pressure, and relative humidity. Essential for aviation, HVAC, and engineering applications.
Input Parameters
Formula
ρ = (Pd / (Rd × T)) + (Pv / (Rv × T))
Where Pd is dry air pressure, Pv is vapor pressure, Rd and Rv are gas constants, and T is temperature in Kelvin.
Note
Air density decreases with higher temperature and altitude. It increases with higher pressure and lower humidity.
Standard Conditions
Sea Level (ISA)
15°C, 1013.25 hPa, 0% RH
≈ 1.225 kg/m³
Room Temperature
20°C, 1013.25 hPa, 50% RH
≈ 1.204 kg/m³
Hot Day
35°C, 1013.25 hPa, 80% RH
≈ 1.146 kg/m³
Factors Affecting Density
- Temperature (↑ temp = ↓ density)
- Pressure (↑ pressure = ↑ density)
- Humidity (↑ humidity = ↓ density)
- Altitude (↑ altitude = ↓ density)
Applications
- Aviation performance calculations
- HVAC system design
- Aerodynamic analysis
- Weather forecasting
- Engine performance tuning
You Might Also Like
Explore more tools in this category
Dress Size Calculator
Calculate women's dress size and convert between US, UK, EU, and AU sizing systems
Capacitance Calculator
Calculate capacitance for parallel, series, plate capacitors, and energy storage
Heat Index Calculator
Calculate heat index and apparent temperature from temperature and humidity
Rainfall Volume Calculator
Calculate water volume from rainfall for rainwater harvesting
Crop Factor Calculator
Calculate crop factor and focal length equivalents for camera sensors
Wind Chill Calculator
Calculate wind chill temperature based on air temperature and wind speed
Carbon Footprint Calculator
Estimate yearly carbon emissions based on travel, electricity, and food habits
Fuel Cost Calculator
Calculate fuel costs for your trips and daily commutes