RED Calc Free

v1.0, Legacy Tool

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Summary: Calculate up to seven moisture metrics — saturation vapor pressure, relative humidity, dew point temperature, water vapor density, vapor pressure, wet-bulb temperature, and humidity ratio — merely by entering dry-bulb temperature and one of the previous values. It’s like having all the benefits of a psychrometric chart without the chart complexities. See Tool Guide. Click on any input or result label for help. By using this tool (application) you agree to the Terms of Use.

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This legacy tool is NOT optimized for mobile devices. Stay tuned for the mobile-optimized version 2.0.