Technical information

Symbol
NameDouble-struck capital q
Unicode numberU+211A
CategoryDouble-struck symbols
DescriptionThe Unicode character ℚ, or U+211A, is known as the "Double-Struck Capital Q". It belongs to the "Letterlike Symbols" block and falls under the "Letter, Uppercase" category in the Unicode standard. This character is a graphic representation of the capital letter "Q" rendered in a double-struck or "blackboard bold" typeface. In mathematical contexts, the double-struck Q typically represents the set of rational numbers. The specific appearance and usage of this character can depend on the system and application it's being used in.

Encoding

HTML Entityℚ
HTML Entity (hex)ℚ
HTML Entity (named)
URL Escape Code%E2%84%9A
UTF-8 (hex)0xE2 0x84 0x9A
UTF-8 (binary)11100010:10000100:10011010
UTF-160x211A
UTF-320x0000211A

Source Code

C, C++, and Java"\u211A"
CSS Code\211A
JavaScript"\u211A"
Perl\x{211A}
Python 2u"\u211A"
Python 3\u211A
Ruby\u{211A}

Preview

This Unicode character looks like this ℚ in sentence and in bold like this and in italic like this .

Font size:

12px
16px
20px
28px
36px
48px
72px

CSS Property: font-weight

100
200
300
400
500
600
700
800
900

HTML Forms and Input

input
disabled input
input-group
select
button
button

Code examples in HTML and CSS

<span>&#8474;</span>

            
span {
    content: "\211A";
}

The symbol in different fonts

-apple-system
Apple Color Emoji
Arial
BlinkMacSystemFont
Courier New
Georgia
Droid Sans
Helvetica
Noto Sans
Oxygen
Roboto
"Segoe UI"
sans-serif
Segoe UI Emoji
Segoe UI Symbol
system-ui
Times New Roman
Ubuntu
Verdana

References