LEN returns the number of characters in a text string.
Syntax
LEN(text)
Text   is the text whose length you want to find. Spaces count as characters.
Examples
			
			
			
			
			
				| Col1 | Formula | Description (Result) | 
			
				| Phoenix, AZ | =LEN([Col1]) | Length of the string (11) | 
			
				|  | =LEN([Col1]) | Length of the string (0) | 
			
				| A     One | =LEN([Col1]) | Length of the string, which includes 5 spaces (9) |