U+339E "㎞" Square Km Unicode Character
Unicode Version 17.0
㎞
U+339E "㎞" Square Km is a precomposed CJK (Chinese, Japanese, and Korean) square symbol representing the unit "km" (kilometer) as a single, compact character. It belongs to the CJK Compatibility block of Unicode, which includes specialized glyphs intended for compatibility with legacy character sets used in East Asian text processing. This symbol is typically used in contexts where space is limited, such as on signs, maps, or in technical documentation, to denote distance or measurement in kilometers without requiring two separate letters.
General Properties
| Code Point | U+339E |
| Version Added | 1.1 |
| Name | Square Km |
| Unicode 1.0 Name | Squared Km |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "k" U+006B Latin Small Letter K "m" U+006D Latin Small Letter M |
Encodings
| HTML Decimal Encoding | ㎞ |
| HTML Hex Encoding | ㎞ |
| UTF-8 Encoding | 0xE3 0x8E 0x9E |
| UTF-16 Encoding | 0x339E |
| UTF-32 Encoding | 0x0000339E |
| C/C++/Java Escape | \u339e |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "k" U+006B Latin Small Letter K "m" U+006D Latin Small Letter M |
| NFKC Simple Casefold | "k" U+006B Latin Small Letter K "m" U+006D Latin Small Letter M |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |