Equals Sign with Dot Below ⩦
⩦ (U+2A66) 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: Equals Sign with Dot Below 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: EQUALS SIGN WITH DOT BELOW is a symbol from the Supplemental Mathematical Operators block. Its code point is U+2A66. It is used as a variant of the equals sign in math and in user interfaces. In formulas, it can show a specialized equality relation or a test that requires confirmation. In user interfaces, it may mark a checked or confirmed status or indicate a strict equivalence. The symbol combines the equal sign with a dot beneath it for emphasis. Histories of mathematical notation show many variants to convey precise meaning. This symbol was designed to cover cases where a standard equals sign is not enough. It appears in text and in math input fields where advanced logic is needed. Familiar users learn to recognize it as a sign of strong equality or a specific rule. The usage is common in technical contexts, such as documentation, software, or scientific papers. It supports clear communication when the usual equals sign might be ambiguous. This keeps formulas concise and signals precise meaning in both math and interfaces.
Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2A66 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+2A66 - General Category:
Sm - Age:
3.2 - Bidi Class:
ON - Block:
Supplemental Mathematical Operators - Script:
Common - UTF-8:
E2 A9 A6 - UTF-16:
2A66 - UTF-32:
00002A66 - HTML dec:
⩦ - HTML hex:
⩦ - JS escape:
\u2A66 - Python \N{}:
\N{EQUALS SIGN WITH DOT BELOW} - Python \u:
\u2A66 - Python \U:
\U00002A66 - URL-encoded:
%E2%A9%A6 - CSS escape:
\2A66
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+2A66 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.