Psychrometric Chart Calculator

Adicot's Psychrometric Chart Calculator is a technical tool that enables users to calculate and analyze various parameters related to the thermodynamic properties of air. The webpage features a user-friendly interface that allows users to input values for key parameters, such as dry-bulb temperature, wet-bulb temperature, and relative humidity, and then generates corresponding results for other parameters, including dew point temperature, enthalpy, and specific volume.

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Instructions:

1. Select Metric or US units

2. Select the first input parameter:

   • Temperature,Dry Bulb, oF [oC]

   • Temperature,Dew Point, oF [oC]

3. Enter the value of the first selected input parameter

4. Select the second input parameter:

   • Temperature,Wet Bulb*, oF [oC]

   • Relative Humidity, %

5. Enter the project's altitude 

6. Click the Calculate button

7. The results are shown in the Results table

* Temperature,Wet Bulb, is only available as an input when the first input is Temperature,Dry Bulb

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Methodology:

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The formulas are based on the 2021 ASHRAE Fundamentals Handbook.