Web-based Psychrometric Chart

In the 1980's Computair were the first to put psychrometric charts on to PC's. Since then they've been a standard component of our coil selection software. We are now making our psychrometric tools available on the web for free!

You can use the psych chart right now, but become a registered member of Computair.com to get extra features. To join go to our registration page.

To use the premium options of the psych chart you will need to take out a paid subscription. You can do that online quickly and easily if you pay by credit card.

Standard features: *   Entry of air on and air off *   Calculation of cooling curve *   Support for heating conditions *   Support for SI and British Imperial (English) units of measure Registered member features: *   Charts available for download as PDF Premium features: *   Charts available for download as high resolution PDF *   No logos in charts, or add your own logo and watermark images.

Use WebPsychChart now!