# LEN

The *LEN* function returns the total number of characters in a text string, including letters, numbers, spaces, and special characters. This function is commonly used to measure text length, validate input, and prepare data for further processing.

#### Syntax

```javascript
LEN(text)
```

#### Arguments

* `text`: The text string or reference whose length you want to calculate.

#### Return value

Returns the total number of characters in the text string.

#### Example

```javascript
LEN([Product Name])
```

Calculates the number of characters in each value of the *Product Name* field, including spaces and special characters.

#### Excel equivalent

[LENGTH](https://support.microsoft.com/en-us/office/len-function-29236f94-cedc-429d-affd-b5e33d2c67cb)


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