Multiplication Sign with Underbar ⨱
⨱ (U+2A31) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.
What it is and where it’s used: Multiplication Sign with Underbar is part of the Symbols family (block: Supplemental Mathematical Operators). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.
History & usage: The character U+2A31 is named the Multiplication Sign with Underbar. It belongs to the Supplemental Mathematical Operators block. In practice, it is part of mathematical notation and can appear in formulas where a multiplication sign is needed with a visible underbar for clarity or to indicate a specific operation. The symbol is used in mathematical contexts, not as a general punctuation. In user interfaces, a cross symbol often denotes close or delete actions or indicates an incorrect state when the context permits. This usage helps users quickly recognize a control or status change. In formulas and computations, common math symbols indicate operations or comparisons between values. The underbar may help distinguish this sign from a standard multiplication mark or provide a visual cue in a particular notation system. Designers and educators may choose this symbol when they want to emphasize an operation distinct from ordinary multiplication. Overall, the symbol serves specialized roles in math, notation, and UI, rather than everyday text. Its usage is guided by the surrounding context and the conventions of the mathematical or interface domain.
Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2A31 in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.
Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.
Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.
See our category page for related symbols.
Technical details
- Codepoint:
U+2A31 - General Category:
Sm - Age:
3.2 - Bidi Class:
ON - Block:
Supplemental Mathematical Operators - Script:
Common - UTF-8:
E2 A8 B1 - UTF-16:
2A31 - UTF-32:
00002A31 - HTML dec:
⨱ - HTML hex:
⨱ - JS escape:
\u2A31 - Python \N{}:
\N{MULTIPLICATION SIGN WITH UNDERBAR} - Python \u:
\u2A31 - Python \U:
\U00002A31 - URL-encoded:
%E2%A8%B1 - CSS escape:
\2A31
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+2A31 or a built‑in character picker.
HTML: use the numeric entity ⨱ (hex) or ⨱ (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.