U+2070 "⁰" Superscript Zero Unicode Character
Unicode Version 17.0
⁰
U+2070 "⁰" Superscript Zero is a typographical symbol that represents a small raised numeral zero, primarily used in mathematical and scientific notation for exponents, such as in the expression 10⁰, or as a placeholder in footnotes and ordinal indicators. It belongs to the Superscripts and Subscripts block of the Unicode standard and is distinct from the regular digit zero, being designed to align with the x-height of surrounding text for clear readability. This character is commonly utilized in chemistry, physics, and linguistics to denote powers, chemical isotopes, or abbreviation markers, ensuring precise communication in technical writing.
General Properties
| Code Point | U+2070 |
| Version Added | 1.1 |
| Name | Superscript Zero |
| Unicode 1.0 Name | Superscript Digit Zero |
| Block | Superscripts and Subscripts |
| General Category | Other Number |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | European Number |
| Decomposition Type | Super |
| Decomposition Mapping | "0" U+0030 Digit Zero |
Encodings
| HTML Decimal Encoding | ⁰ |
| HTML Hex Encoding | ⁰ |
| UTF-8 Encoding | 0xE2 0x81 0xB0 |
| UTF-16 Encoding | 0x2070 |
| UTF-32 Encoding | 0x00002070 |
| C/C++/Java Escape | \u2070 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | Digital |
| Numeric Value | 0 |
| Line Break | Alphabetic |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "0" U+0030 Digit Zero |
| NFKC Simple Casefold | "0" U+0030 Digit Zero |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Compat Math Continue | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |