---
page_title: floor - Functions - Configuration Language
description: |-
The floor function returns the closest whole number less than or equal to
the given value.
# `floor` Function
`floor` returns the closest whole number that is less than or equal to the
given value, which may be a fraction.
## Examples
```
> floor(5)
5
> floor(4.9)
4
## Related Functions
* [`ceil`](/language/functions/ceil), which rounds to the nearest whole number _greater than_
or equal.