Humidity calculations and conversions made easy

The free Vaisala Humidity Calculator allows you to calculate several humidity parameters from one known value. Make unit conversions on the fly, and see the effects of changing ambient conditions, like temperature and pressure.

Calculate or convert: relative humidity, dewpoint / frostpoint, absolute humidity, water content, mixing ratio, vapor pressure, parts per million. The calculator speaks your language: English, Chinese, Dutch, German, Finnish, French and Japanese included.

www.vaisala.com/humiditycalculator