Identical To Symbol

A symbol from the Math Symbols collection. Click the symbol or the button below to copy.

Symbol: ≡
Unicode: U+2261
HTML entity: &equiv;
Category: Math Symbols

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10 of 96 in the math symbols collection

About the identical to symbol

In mathematical notation, this symbol expresses that two quantities are exactly the same in value or definition. It is distinct from the equals sign, which often denotes equivalence derived from calculation rather than an identity. The character appears in algebra, trigonometry, and logic to mark statements true for all variable assignments, such as trigonometric identities or congruence relations in modular arithmetic.

Outside of formal mathematics, the symbol is occasionally used in technical writing or diagrams to indicate a permanent or structural equivalence, though it remains primarily a specialist character within mathematical and scientific texts.

How to type Identical To

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options

In Word / Outlook: type 2261 then press Alt + X.
Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options

Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 2261.
Or: Control + Command + Space opens the Character Viewer — search by name.