# Is there a humidity calculator out there?

| Posted in General Questions on

I live in a leaky house, the inside humidity tracks the outdoor humidity with a lag and temperature adjusted, but i want to be able to input an outdoor temp and humidity and calculate what the indoor humidity will eventually become at 20ºC (theoretically of course).

Basically i want to know what the resulting humidity would be at an input temp and humidity if that air was raised to 20C

I know the outdoor will eventually change before the indoor catches up but it would be useful to me.

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### Replies

1. | | #1

http://www.dpcalc.org/ ... one of many

2. GBA Editor
| | #2

Alan,
Further discussion of your question and how to answer it can be found here: How to Use the Psychrometric Chart.

3. | | #3

That one does the job....but for just RH and dew pts a simplier one to use
is

Temperature, Dewpoint, and Relative Humidity Calculator = http : // einstein.atmos.colostate . edu/~mcnoldy/Humidity.html

Enter temp and then enter either dew pt or RH to find the other.

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