Specific Humidity Calculator

Enter the partial pressure of water vapor and the total pressure into the calculator to determine the specific humidity.

Specific Humidity Formula

The following equation can be used to calculate a specific humidity.

SH = (.622 * P / ( P – Pw ) ) * 100

  • Where SH is the specific humidity (%)
  • P is the total pressure
  • Pw is the partial pressure of water vapor

FAQ

What is specific humidity?

Specific humidity is a measure of the humidity of air with respect to the ratio of the water vapor pressure to the total pressure.

What is the partial pressure of water vapor?

The partial pressure of water is the pressure that the water vapor contributes to the overall pressure of the air.

specific humidity calculator

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