Syntax

ASC(text)

Arguments

The printed syntax lists 1 argument(s), in order:

  • text

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“Converts full-width ASCII and katakana characters to their half-width counterparts. All standard-width characters will remain unchanged.”

Google’s help article for ASC →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 421 of 516, data fetched 28 September 2026. Data month: September 2026.