# Relative Humidity from Dew Point

![](https://894783789-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LPHXQ1I3gb93zpLrLZf%2Fuploads%2Fgit-blob-026cae8812dea90ee8f2e78d8af9784880e4ae8b%2FRelative_Humidity_from_Dew_Point.png?alt=media)

![](https://894783789-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LPHXQ1I3gb93zpLrLZf%2Fuploads%2Fgit-blob-dc06e9a1d9c8bd6691dcc92c7211887faa859e8e%2FRelative_Humidity_from_Dew_Point.png?alt=media) - [\[source code\]](https://github.com/ladybug-tools/ladybug-grasshopper/blob/master/ladybug_grasshopper/src/LB%20Relative%20Humidity%20from%20Dew%20Point.py)

Calculate relative humidity from Dry Bulb Temperature and Dew Point Temperature.

### Inputs

* **dry\_bulb \[Required]**

A value or data collection representing dry bulb temperature \[C]

* **dew\_point \[Required]**

A value or data collection representing dew point temperature \[C]

### Outputs

* **rel\_humid**

A data collection or value indicating the relative humidity \[%]