Unicode Symbol Directory

Mathematical Operators & Symbols Unicode

1-click copy all math symbols including infinity, square root, summation, integral, not equal, almost equal, and calculus symbols.

∞

Infinity

U+221E

Full Specs

≈

Almost Equal To (Approx)

U+2248

Full Specs

≠

Not Equal To

U+2260

Full Specs

∑

N-Ary Summation (Sigma)

U+2211

Full Specs

∫

Integral

U+222B

Full Specs

√

Square Root

U+221A

Full Specs

Plus-Minus Sign

U+00B1

Full Specs

≤

Less-Than or Equal To

U+2264

Full Specs

≥

Greater-Than or Equal To

U+2265

Full Specs

∂

Partial Differential

U+2202

Full Specs

∇

Nabla / Del Operator

U+2207

Full Specs

∏

N-Ary Product (Pi)

U+220F

Full Specs

∈

Element Of (In Set)

U+2208

Full Specs

∅

Empty Set

U+2205

Full Specs

∝

Proportional To

U+221D

Full Specs

Developer Escape Codes & HTML Entities

Symbol	Name	Codepoint	HTML Dec	HTML Hex	CSS Content	JavaScript
∞	Infinity	U+221E	∞	∞	\221E	\u221E
≈	Almost Equal To (Approx)	U+2248	≈	≈	\2248	\u2248
≠	Not Equal To	U+2260	≠	≠	\2260	\u2260
∑	N-Ary Summation (Sigma)	U+2211	∑	∑	\2211	\u2211
∫	Integral	U+222B	∫	∫	\222B	\u222B
√	Square Root	U+221A	√	√	\221A	\u221A
±	Plus-Minus Sign	U+00B1	±	±	\00B1	\u00B1
≤	Less-Than or Equal To	U+2264	≤	≤	\2264	\u2264
≥	Greater-Than or Equal To	U+2265	≥	≥	\2265	\u2265
∂	Partial Differential	U+2202	∂	∂	\2202	\u2202
∇	Nabla / Del Operator	U+2207	∇	∇	\2207	\u2207
∏	N-Ary Product (Pi)	U+220F	∏	∏	\220F	\u220F
∈	Element Of (In Set)	U+2208	∈	∈	\2208	\u2208
∅	Empty Set	U+2205	∅	∅	\2205	\u2205
∝	Proportional To	U+221D	∝	∝	\221D	\u221D

Frequently Asked Questions about Mathematical Operators & Symbols Unicode

How to write an infinity symbol in HTML?

Use ∞ or ∞ to display the infinity symbol (∞).

What is the square root symbol code in Unicode?

The Unicode codepoint is U+221A and the HTML entity is √ or √.