MathLiveRelative humidity
Gives the relative humidity as the ratio of the actual partial pressure of water vapor in air to the saturation vapor pressure of water at the same temperature. It is used in meteorology, HVAC design and climate control to express how close air is to being saturated with moisture.
\phi = \frac{p}{p_{\mathrm{sat}}}What the symbols mean
| relative humidity (dimensionless, often given as a percentage) | |
| partial pressure of water vapor in the air (Pa) | |
| saturation (equilibrium) vapor pressure of water at the given temperature (Pa) |
About this formula
- FieldEarth and space
- TopicAtmospheric physics
- LevelHigh school
- Also calledrelative humidity formula, rh formula, r.h., relative partial pressure, partial pressure over saturation vapor pressure
- SourceWikidata Q2499617
Write it in Obsidian
MathLive is a free visual math editor for Obsidian. Run Find a formula, type “relative humidity”, and it goes into your note as editable LaTeX. You can also scan formulas from screenshots, PDFs and handwriting.