Squared Plus ⊞

⊞ (U+229E) 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: Squared Plus 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: SQUARED PLUS is the symbol for a squared plus operation. Its code point is U+229E, shown as 229E in hex. It sits in the Mathematical Operators block and is used in math notation. In formulas, it marks a specific arithmetic action alongside other operators. In user interfaces, it helps users recognize an operation quickly. The symbol is a standard part of mathematical writing, so it is familiar to many readers. It signals an operation or a comparison when combining terms, especially where squared values appear or when adding a squared term to another quantity. People encounter it in textbooks and on calculators that support extended math notation. Because it is a common operator, it often appears alongside other symbols to express complex expressions clearly. When used, the squared plus sign communicates a precise mathematical meaning without needing extra words. This makes it useful in both teaching and practical calculation contexts. The symbol’s design is simple, which helps with quick recognition in dense formulas. Overall, it serves as a clear, reusable tool in mathematical notation and interfaces.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+229E 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.