Psychrometric Chart Calculator Excel » (Secure)

Off-the-shelf software is often a "black box"—you input data, and it gives an answer, but you can't always see the math. With Excel, you have full control over the algorithms. You can modify the atmospheric pressure for high-altitude projects, tweak units, or integrate the calculator into larger spreadsheets (such as load calculation sheets).

Calculated using the Magnus-Tetens approximation or more complex ASHRAE polynomials: psychrometric chart calculator excel

where:

A robust psychrometric calculator relies on a set of interdependent formulas. Your Excel sheet needs to calculate seven core properties when given at least two independent variables (typically Dry Bulb Temperature and Wet Bulb Temperature, or Dry Bulb and Relative Humidity): Off-the-shelf software is often a "black box"—you input

Off-the-shelf calculators force you into their workflow. With Excel, you can: Avoid any that don't show the formulas

However, if you need a quick start, look for templates that cite as their source. Avoid any that don't show the formulas.