Is there a formula given the temperature, dew point, and pressure to find relative humidity? I have seen several calculators like this one, but I would like to know how to calculate this myself.

Feb 8, 2020 · Question: How is relative humidity determined from a wet and dry bulb readings? What are the steps and where's a good source for the equations and parameters involved?

Aug 12, 2014 · How do I convert specific humidity to relative humidity? What variables are needed (e.g. air temperature, pressure, etc.)?

Jun 28, 2015 · How to calculate specific humidity with relative humidity, temperature, and pressure Ask Question Asked 10 years, 5 months ago Modified 10 years, 5 months ago

Jun 24, 2015 · I am using NCEP_DOE reanalysis 2 data set. It include only relative humidity while I need specific humidity. How do I convert the relative humidity into specific humidity?

Dec 14, 2020 · I would like to find a formula to approximate RH based on known air temperature and dew point. I need the approximation to be valid at least between -20...+40 degrees …

Aug 12, 2022 · for ERA5 hourly data on single level relative humidity can not be downloaded. However, dewpoint temperature is given and in the description it is stated that "combined with …

To understand that formula, it's better to start from the more intuitive dependence of dew point with temperature and relative humidity, as illustrated by the following graph from Wikipedia: As …

Once you know the absolute humidity, you can adapt the same formula to calculate the relative humidity of a parcel of outside air (of now known content of water), that is taken from outside …

Mar 9, 2017 · $$1\:\mathrm {N/m^2} = 1 \:\mathrm {Pa}$$ $$100 \:\mathrm {Pa} = 1 \:\mathrm {hPa} = 1 \:\mathrm {mb}$$ So yes, you do have valid units of pressure. And can easily …