±

Technical information

Symbol±
NamePlus-minus sign
Unicode numberU+00B1
CategoryLatin-1 Supplement2. Latin-1 punctuation and symbols
DescriptionThe Unicode character ±, or U+00B1, is known as the "Plus-Minus Sign". It is part of the "Latin-1 Supplement" block, which includes various characters used in Western European languages. This character falls under the "Symbol, Math" category. Visually, it appears as a plus sign with a minus sign right below it. The Plus-Minus Sign is used in mathematical and scientific contexts to indicate the precision of an approximation, or to denote a value that can be either positive or negative. For example, in "x = 3 ± 2", x could be either 1 or 5. It can also be used to denote a range of values, and in engineering, it represents tolerance levels. The specific usage of the Plus-Minus Sign can depend on the particular conventions of a discipline, but it generally serves as a symbol for positive and negative values or uncertainty.

Encoding

HTML Entity±
HTML Entity (hex)±
HTML Entity (named)±
URL Escape Code%C2%B1
UTF-8 (hex)0xC2 0xB1
UTF-8 (binary)1100001010110001
UTF-160x00B1
UTF-320x000000B1

Source Code

C, C++, and Java"\u00B1"
CSS Code\00B1
JavaScript"\u00B1"
Perl\x{00B1}
Python 2u"\u00B1"
Python 3\u00B1
Ruby\u{00B1}

Preview

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

Font size:

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

CSS Property: font-weight

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100
±
200
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300
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400
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500
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600
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700
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800
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900

HTML Forms and Input

input
disabled input
±
input-group
select
button
button

Code examples in HTML and CSS

<span>&#177;</span>

            
span {
    content: "\00B1";
}

The symbol in different fonts

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

References