ASC Function

Description

For Double-byte character set (DBCS) languages, The ASC function changes full-width (double-byte) English letters or katakana within a character string to half-width (single-byte) characters.

If you want to change half-width (single-byte) English letters or katakana within a character string to full-width (double-byte) characters, please use WIDECHAR function.

Syntax

ASC(text)

Parameters

Text Required. The text or a reference to a cell that contains the text you want to change. If text does not contain any full-width letters, text is not changed.

Examples

The example may be easier to understand if you copy A1:C5 to a blank worksheet.

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5
A B C
Formula Result Description
=ASC("EXCEL") EXCEL single-byte characters, not changed.
=ASC("EXCEL") EXCEL double-byte characters.
=ASC("CHINA") CHINA double-byte characters.
=ASC("EXCELHOWTO.COM") EXCELHOWTO.COM double-byte characters.

Video training

See also: Excel text functions

ASC
Changes full-width (double-byte) English letters or katakana within a character string to half-width (single-byte) characters
BAHTTEXT
Converts a number to text, using the ß (baht) currency format
CHAR
Returns the character specified by the code number
CLEAN
Removes all nonprintable characters from text
CODE
Returns a numeric code for the first character in a text string
CONCATENATE
Joins several text items into one text item
DOLLAR
Converts a number to text, using the $ (dollar) currency format
EXACT
Checks to see if two text values are identical
FIND, FINDB
Finds one text value within another (case-sensitive)
FIXED
Formats a number as text with a fixed number of decimals
WIDECHAR
Changes half-width (single-byte) English letters or katakana within a character string to full-width (double-byte) characters
LEFT, LEFTB
Returns the leftmost characters from a text value
LEN, LENB
Returns the number of characters in a text string
LOWER
Converts text to lowercase
MID, MIDB
Returns a specific number of characters from a text string starting at the position you specify
PHONETIC
Extracts the phonetic (furigana) characters from a text string
PROPER
Capitalizes the first letter in each word of a text value
REPLACE, REPLACEB
Replaces characters within text
REPT
Repeats text a given number of times
RIGHT, RIGHTB
Returns the rightmost characters from a text value
SEARCH, SEARCHB
Finds one text value within another (not case-sensitive)
SUBSTITUTE
Substitutes new text for old text in a text string
T
Converts its arguments to text
TEXT
Formats a number and converts it to text
TRIM
Removes spaces from text
UPPER
Converts text to uppercase
VALUE
Converts a text argument to a number

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