Allows you to do psychrometric calculations in MS Excel. ¡Get Psyched! is based on ASHRAE correlations and is more than accurate enough for HVAC applications. It works with both English (IP) and Metric (SI) units.
You can calculate these properties in any Excel spreadsheet:
Can also quickly and easily plot points on a psychrometric chart. The chart will correct automatically to any altitude that you select, up to 15,000 ft. or 5,000 meters.