elasticsearch/docs/reference/query-languages/esql/_snippets/functions/to_radians.md

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## `TO_RADIANS` [esql-to_radians]
**Syntax**
:::{image} ../../../../../images/to_radians.svg
:alt: Embedded
:class: text-center
:::
**Parameters**
`number`
: Input value. The input can be a single- or multi-valued column or an expression.
**Description**
Converts a number in [degrees](https://en.wikipedia.org/wiki/Degree_(angle)) to [radians](https://en.wikipedia.org/wiki/Radian).
**Supported types**
| number | result |
| --- | --- |
| double | double |
| integer | double |
| long | double |
| unsigned_long | double |
**Example**
```esql
ROW deg = [90.0, 180.0, 270.0]
| EVAL rad = TO_RADIANS(deg)
```
| deg:double | rad:double |
| --- | --- |
| [90.0, 180.0, 270.0] | [1.5707963267948966, 3.141592653589793, 4.71238898038469] |