U+339C
Millimeter㎜
Millimeter is a monochrome text character from the Unicode CJK Compatibility block, listed here under Units & Measurements. Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "mm", "length", "unit".
Quick facts
- Unicode
- U+339C
- Decimal
- 13212
- Hex
- 0x339C
- Octal
- 0o31634
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+339C | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | SQUARE MM | |
| Unicode 1.0 nameLegacy alias | SQUARED MM | |
| DecimalBase 10 | 13212 | |
| HexadecimalBase 16 | 0x339C | |
| OctalBase 8 | 0o31634 | |
| BinaryBase 2 | 0011001110011100 | |
| General categorySymbol, other | So | |
| Unicode blockU+3300–U+33FF | CJK Compatibility | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | ㎜ | |
| HTML entity (hex) | ㎜ | |
| CSS content escapeUse inside content: "…" | \339C | |
| URL encodedPercent-encoded UTF-8 | %E3%8E%9C |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u339C | |
| JSONUTF-16 surrogate pairs | \u339C | |
| Python | \u339C | |
| Java / C# / Kotlin | \u339C |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-83 bytes | E3 8E 9C | |
| UTF-16 (BE) | 339C | |
| UTF-32 (BE) | 0000339C |
How to type Millimeter
Windows
Hold Alt and type +339C with the hex numeric keypad option enabled, or type 339C then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 339C. Or open Character Viewer (Control+Command+Space) and search "Millimeter".
Linux
Press Ctrl+Shift+U, type 339c, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.
HTML, CSS & code
Paste the character directly, or use the escapes above: ㎜ in HTML, \339C in CSS, and \u339C in JavaScript.
Official Unicode reference
- Character name
- SQUARE MM
- Unicode 1.0 name
- SQUARED MM
- Block
- CJK Compatibility (U+3300–U+33FF)
- General category
- So — Symbol, other
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the CJK Compatibility block: U3300.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Millimeter symbol?
Click the Copy button at the top of this page, or select ㎜ and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.
What is the Unicode code point for Millimeter?
Millimeter is U+339C (decimal 13212, hexadecimal 0x339C, octal 0o31634). It lives in the CJK Compatibility block (U+3300–U+33FF) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Millimeter?
The Unicode Standard (version 18.0.0) names this character "SQUARE MM"; its Unicode 1.0 name was "SQUARED MM". Its General_Category is So (Symbol, other).
What is the HTML code for Millimeter?
Use ㎜ or ㎜. In CSS, use content: "\339C".
How do I type Millimeter in code?
JavaScript: "\u339C". Python: "\u339C". JSON and Java: "\u339C". The UTF-8 byte sequence is E3 8E 9C.
Is Millimeter an emoji?
No. Millimeter is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.