Windows
2 options- In Word / Outlook: type 25A0 then press Alt + X.
- Anywhere: press Win + . to open the emoji & symbol picker, then search.
Black Square
A symbol from the Geometric Shapes collection. Click the symbol or the button below to copy.
- Symbol
- ■
- Unicode
- U+25A0
- HTML entity
- ■
- Category
- Geometric Shapes
Export
Download Black Square as a vector SVG or a raster PNG.
SVG uses the system font stack — open in any vector editor and convert to outlines if needed. PNGs have a transparent background.
1 of 48 in the geometric shapes collection
About the black square symbol
Representing a solid, dark quadrilateral, the Black Square is a basic character found within the Block Elements region of the Common script. It is generally recognized as a neutral geometric mark used to indicate a filled space or an intentional stop. In spoken contexts, it is typically read simply as a black square or a solid block.
Usage of this symbol spans several practical domains, particularly in typography and document design. It frequently serves as an end-of-proof marker in mathematics, often called a tombstone or Halmos symbol, to signal the conclusion of a demonstration. In digital interfaces and coding, it may represent a terminal cursor or a checkbox state. Additionally, the character appears in social media and lists as a stylized bullet point or a decorative separator between sections of text.
How to type Black Square
Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.
macOS
2 options- Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 25A0.
- Or: Control + Command + Space opens the Character Viewer — search by name.
Linux
1 step- Press Ctrl + Shift + U, type 25A0, then press Enter or Space.
Copy in every format
Every form of this character — for HTML, CSS, JavaScript, URLs and more. Click any value to copy.
Part of the Block Elements block
■ black square lives inside the Block Elements Unicode block. Browse every indexed character in Block Elements →
Related geometric shapes
Other geometric shapes you can copy and paste — explore similar Unicode characters from the same family.
- □White SquareCopy the white square symbol→
- ▢White Square With Rounded CornersCopy the white square with rounded corners symbol→
- ▣White Square Containing Black Small SquareCopy the white square containing black small square symbol→
- ▤Square With Horizontal FillCopy the square with horizontal fill symbol→
- ▥Square With Vertical FillCopy the square with vertical fill symbol→
- ▦Square With Orthogonal Crosshatch FillCopy the square with orthogonal crosshatch fill symbol→
- ▧Square With Upper Left To Lower Right FillCopy the square with upper left to lower right fill symbol→
- ▨Square With Upper Right To Lower Left FillCopy the square with upper right to lower left fill symbol→
- ▩Square With Diagonal Crosshatch FillCopy the square with diagonal crosshatch fill symbol→
- ▪Black Small SquareCopy the black small square symbol→
- ▫White Small SquareCopy the white small square symbol→
- ●Black CircleCopy the black circle symbol→
More geometric shapes
Explore related collections
Browse other symbol families that pair well with geometric shapes.