U+3391 "㎑" Square Khz Unicode Character
Unicode Version 18.0
Source: Browser Default
U+3391 "㎑" Square Khz is a precomposed CJK compatibility ideograph representing the unit of frequency "kilohertz" and is part of the CJK Compatibility block, which was designed for compatibility with legacy East Asian character encodings. This single character encodes the three elements "k," "H," and "z" into one square glyph, reflecting its origin in vertical text layouts or space-constrained environments like telecommunication displays and early computing systems. Although it is not commonly used in modern digital text, it remains available in Unicode for historical and interoperability reasons, allowing systems to faithfully reproduce older documents or user interfaces that rely on such compact symbols.
General Properties
Code Point
U+3391
Name
Square Khz
Unicode 1.0 Name
Squared Khz
Encodings
HTML Decimal Encoding
㎑
HTML Hex Encoding
㎑
UTF-8 Encoding
0xE3 0x8E 0x91
UTF-16 Encoding
0x3391
UTF-32 Encoding
0x00003391
C/C++/Java Escape
\u3391
Unicode Properties
Numeric Value
NaN
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Common