Use this psychrometric calculator to accurately determine the humidity and temperature properties of the air around you.

## How to Use the Psychrometric Calculator

To use the psychrometric calculator, input the Dry Bulb Temperature in degrees Celsius, the Relative Humidity in percentage, and the Atmospheric Pressure in kilopascals (kPa). After entering all values, click the “Calculate” button to determine the specific humidity. Specific humidity is displayed in kilograms of water vapor per kilogram of dry air (kg/kg).

## How It Works

The calculator works by first calculating the saturation vapor pressure of the air at the given dry bulb temperature. The actual vapor pressure is then found using the relative humidity. Finally, the specific humidity is calculated using the actual vapor pressure and the atmospheric pressure.

### Limitations

This calculator assumes standard atmospheric conditions and may not be accurate for extreme temperatures or very high altitudes. It is intended for educational and informational purposes only and should not be used for critical engineering calculations without verification.