gives the number of characters in a string.


  • StringLength counts special characters such as as single characters, even if their full names involve many characters.
  • StringLength[{s1,s2,}] gives the list of lengths of each of the si.


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Basic Examples  (1)

Find the number of characters in a string:

Scope  (3)

Find lengths of all strings in a list:

StringLength treats special characters just like ordinary ones:

Newlines count as one character:

Applications  (1)

Find the growth rate of a string substitution system:

Properties & Relations  (1)

The empty string has zero length:

Possible Issues  (2)

Formatting constructs are included in giving lengths of formatted strings:

StringLength counts every character as length 1, regardless of the length of its full name:

Introduced in 1988
Updated in 1996