LOWER
Applies to: 
Calculated column
Calculated table
Measure
Visual calculation
Converts all letters in a text string to lowercase.
Syntax
LOWER(<text>)
Parameters
| Term | Definition |
|---|---|
| text | The text you want to convert to lowercase, or a reference to a column that contains text. |
Return value
Text in lowercase.
Remarks
Characters that are not letters are not changed. For example, the formula = LOWER("123ABC") returns 123abc.
Example
The following formula gets each row in the column, [ProductCode], and converts the value to all lowercase. Numbers in the column are not affected.
= LOWER('New Products'[ProductCode])