> For the complete documentation index, see [llms.txt](https://v5docs.keyfax.biz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v5docs.keyfax.biz/reference/expression-reference/text-expressions/len.md).

# Len

Returns the number of characters in the databox value.

| Expression | Databox value         | Result |
| ---------- | --------------------- | ------ |
| `Len`      | `The quick brown fox` | `19`   |
| `Len`      | `1.775`               | `5`    |
| `Len`      | (empty)               | `0`    |

Everything counts, including spaces and the decimal point.