Psychrometer °F — Support Page

App Overview

Psychrometer °F is a psychrometric calculator focused on thermal comfort. Adjust values with a dial, view color‑coded temperature, and switch the second input between relative humidity, dew point, and wet‑bulb. Enter dry‑bulb with either %RH, dew point, or wet‑bulb to compute the following properties: Dry‑Bulb and Wet‑Bulb Temperatures, Dew‑Point/Frost‑Point, Relative Humidity, Mixing (Humidity) Ratio (gr/lb), Absolute Humidity (gr/ft³), Enthalpy (Btu/lb), Specific Volume (ft³/lb), Atmospheric Pressure (inHg), Vapor Pressure (inHg), Saturation Vapor Pressure (inHg), and the Temperature–Humidity (Discomfort) Index. Weather‑based auto‑fill is available with location permission.