# Length

Menu Path : **Operator > Math > Vector**

The **Length** [uniform Operator](Operators.md#uniform-operators) calculates the length of a 1D, 2D, or 3D vector. If you input a Vector4, this Operator ignores the fourth value of the vector.

## Operator properties

| **Input** | **Type**                                | **Description**                        |
| --------- | --------------------------------------- | -------------------------------------- |
| **X**     | [Configurable](#operator-configuration) | The vector to calculate the length of. |

| **Output** | **Type** | **Description**                 |
| ---------- | -------- | ------------------------------- |
| **Output** | float    | The length of the input vector. |

## Operator configuration

To view this [uniform Operator's](Operators.md#uniform-operators) configuration, click the **cog** icon in the Node's header. Here you can configure the data type this Operator uses.

### Available types

You can use the following types for your **Input values** and ports:

- **Position**
- **Vector**
- **Vector3**
- **Vector2**
- **Float**