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U+225C · Delta Equal To · Mathematical Operators · Common

Delta Equal To ≜

(U+225C) 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: Delta 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: History & usage: The Delta Equal To symbol has the codepoint U+225C and is in the Mathematical Operators block. Its script is listed as Common. In texts, this symbol is used to express a relation that combines a delta notion with equality. It appears in mathematical formulas where a change or difference is set equal to a value or another expression. It also shows up in user interfaces that display formulas or results, helping to convey a specific type of comparison at a glance. The symbol is treated as a standard operator, so it can combine with other symbols and variables without special formatting. In practice, writers and designers use it when a delta change is tied to an exact equality, rather than a simple equals sign alone. The symbol supports clear communication in steps, equations, and messages that involve both a change and a precise match. Overall, it serves as a focused indicator for a delta-related equality in common math notation and related interfaces.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+225C 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+225C
  • General Category: Sm
  • Age: 1.1
  • Bidi Class: ON
  • Block: Mathematical Operators
  • Script: Common
  • UTF-8: E2 89 9C
  • UTF-16: 225C
  • UTF-32: 0000225C
  • HTML dec: ≜
  • HTML hex: ≜
  • JS escape: \u225C
  • Python \N{}: \N{DELTA EQUAL TO}
  • Python \u: \u225C
  • Python \U: \U0000225C
  • URL-encoded: %E2%89%9C
  • CSS escape: \225C
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+225C 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.