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U+2291 · Square Image of or Equal To · Mathematical Operators · Common

Square Image of or Equal To ⊑

(U+2291) 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: Square Image of or Equal To is part of the Symbols family (block: 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+2291 is named the square image of equals to. It belongs to the Mathematical Operators block. In usage, common math symbols indicate operations or comparisons in formulas and user interfaces. This symbol looks like a small square that represents an image of equality. In history, it emerged with other symbols for advanced math and logic, to show a relation indirectly rather than with a standard equals sign. It has found roles in specialized texts and software where space is limited or where visual cues are needed. Users encounter it in technical documents, diagrams, or tools that display mathematical notation. In user interfaces, it can serve as a decorative or contextual marker for a relation, an auxiliary operator, or a visual cue alongside traditional symbols. Its usage tends to be limited to contexts that require a compact or graphical sense of equality. Overall, this symbol helps convey a relation and supports clear communication in math-centered content.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2291 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+2291
  • General Category: Sm
  • Age: 1.1
  • Bidi Class: ON
  • Block: Mathematical Operators
  • Script: Common
  • UTF-8: E2 8A 91
  • UTF-16: 2291
  • UTF-32: 00002291
  • HTML dec: ⊑
  • HTML hex: ⊑
  • JS escape: \u2291
  • Python \N{}: \N{SQUARE IMAGE OF OR EQUAL TO}
  • Python \u: \u2291
  • Python \U: \U00002291
  • URL-encoded: %E2%8A%91
  • CSS escape: \2291
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+2291 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.