The infinity symbol (∞) represents something without a finite limit or endpoint. It is widely used in mathematics, science, philosophy, tattoos, jewelry, usernames, social media, and graphic design. The familiar sideways figure-eight is also called a lemniscate.
If you are looking for infinity symbols to copy and paste, want to know what they mean, need their Unicode codes, or want to learn how to type them on Windows, Mac, iPhone, Android, Google Docs, Excel, or other applications, this guide covers the most useful information.
Infinity Symbols to Copy and Paste
Here are the most useful infinity-related symbols:
∞
♾️
∞ ♡
∞ ♥
♥ ∞ ♥
∞ ✨
∞ + ∞
∞∞
Infinity Symbol Quick Reference
| Symbol | Name | Unicode | Main Use |
| ∞ | Infinity | U+221E | Mathematics and general text |
| ♾ | Infinity | U+267E | Emoji/symbol use |
| ♾️ | Infinity emoji | U+267E + U+FE0F | Social media and messaging |
| ⧜ | Incomplete Infinity | U+29DC | Specialized mathematics |
| ⧝ | Tie Over Infinity | U+29DD | Specialized mathematics |
| ⧞ | Infinity Negated With Vertical Bar | U+29DE | Specialized mathematics |
| Ꝏ | Latin Capital Letter OO | U+A74E | Latin orthography |
| ꝏ | Latin Small Letter OO | U+A74F | Latin orthography |
The standard mathematical infinity character is ∞, U+221E. The Unicode emoji charts separately identify ♾, U+267E, as the infinity emoji character.
What Does the Infinity Symbol Mean?

The infinity symbol ∞ means infinity, endlessness, or lack of a finite limit.
In mathematics, it describes concepts that do not have a finite boundary. It is important to understand that infinity is not simply the largest possible number. In many mathematical situations, infinity describes an unbounded process or behavior rather than an ordinary number.
Outside mathematics, the symbol can have broader meanings, including:
- Forever
- Eternity
- Endless love
- Limitless possibilities
- Infinite potential
- Continuity
- An unbreakable connection
- Timelessness
- An endless journey
The intended meaning depends on the context.
∞ vs. ♾️: What Is the Difference?
∞ and ♾️ look similar but are not the same Unicode character.
∞ — Mathematical Infinity
∞ is Unicode U+221E, officially the infinity character. It is commonly used in:
- Mathematics
- Calculus
- Equations
- Scientific writing
- Technical documents
- General text
♾️ — Infinity Emoji
♾️ is the emoji presentation of Unicode character U+267E. Unicode’s current emoji charts list U+267E with the short name infinity.
It is more commonly seen in:
- Text messages
- Social media
- Captions
- Bios
- Informal posts
- Decorative designs
Simple rule: use ∞ for mathematical and plain-text purposes, and ♾️ when you specifically want an emoji-style appearance.
Infinity Symbol History
The concept of infinity is much older than the modern infinity sign. Ancient philosophers and mathematicians discussed infinity for centuries, but the familiar sideways-eight symbol has a specific history.
English mathematician John Wallis is credited with introducing ∞ as a mathematical symbol in 1655 in his work De sectionibus conicis. He subsequently used the symbol in his work on infinite quantities.
Wallis did not clearly explain why he selected this particular shape. Several theories have been proposed, including connections to older numerical notation, but the precise reason remains uncertain.
The word lemniscate is associated with the shape of the sideways figure eight. The symbol’s history therefore combines mathematical notation with a distinctive geometric form.
Why Is Infinity Shaped Like an 8?
The infinity sign resembles a figure eight turned sideways:
8 → ∞
This shape forms a continuous loop, which makes it visually suitable for representing something without an endpoint.
However, the exact reason Wallis selected this shape is not definitively known. Historical sources discuss several possible explanations, so claims that there is one proven origin should be treated cautiously.
Infinity Symbol in Mathematics
In mathematics, ∞ appears in several important areas.
Limits
You may see expressions such as:
x → ∞
This means that x increases without bound in the context being described.
For example:
lim x→∞ 1/x = 0
This describes a limit in which the value of 1/x approaches zero as x grows without bound.
Infinite Intervals
Infinity can also appear when describing intervals.
For example:
[0, ∞)
means all real numbers from 0 upward without including infinity as an ordinary endpoint.
Infinite Series
The symbol is also used when a sequence or series continues indefinitely:
1 + 1/2 + 1/4 + 1/8 + …
The ellipsis indicates continuation, while infinity may be used in formal notation to indicate an unending series.
Positive and Negative Infinity
You may encounter:
+∞
and
−∞
These can describe unbounded behavior in positive or negative directions.
Infinity Is Not the Biggest Number
One of the most common misconceptions is that infinity is simply an extremely large number.
It is better to think of infinity as a concept describing unboundedness.
For example, there is always another larger finite number:
- 100
- 1,000
- 1,000,000
- 1,000,000,000
- and so on.
No matter how large a finite number becomes, you can add 1 and obtain a larger finite number.
Therefore, saying that infinity is “the biggest number” is misleading.
Infinity Symbol in Love
In romantic contexts, ∞ commonly represents everlasting love or a relationship that is intended to last forever.
Popular combinations include:
Love ∞
∞ Love ∞
You + Me = ∞
♥ ∞ ♥
∞♡
People may use these designs in:
- Wedding decorations
- Anniversary cards
- Jewelry
- Couple tattoos
- Love letters
- Social-media captions
- Relationship bios
In this context, the symbol is metaphorical rather than mathematical.
Infinity Symbol for Tattoos
The simple shape of ∞ makes it popular for tattoos.
A person may combine it with:
- Names
- Initials
- Dates
- Hearts
- Flowers
- Feathers
- Words
- Family references
- Religious or personal imagery
Examples include:
∞ + Name
Family ∞
Love ∞
∞ + Date
∞ ♥
A plain infinity tattoo can suggest eternity or continuity, while additional elements can give the design a more specific personal meaning.
Infinity Symbol in Jewelry
Infinity designs are also common in jewelry because the shape naturally communicates continuity and permanence.
An infinity necklace may symbolize:
- Eternal love
- Friendship
- Family
- A lasting relationship
- An important memory
- An enduring commitment
The meaning is not universal, so the significance of an infinity piece ultimately depends on the person giving or wearing it.
Infinity Symbols for Usernames
The infinity symbol can make a username or profile name look distinctive.
Examples:
Dreamer ∞
Limitless ∞
Forever ∞
InfiniteSoul
∞ Wanderer
Dream ∞
Love∞
Platform rules differ, however. Some websites allow Unicode symbols in display names but restrict them in actual usernames or account handles.
Infinity Symbols for Instagram, TikTok, and Social Media
The symbol works especially well in short captions and bios because it communicates an idea without requiring many words.
Examples:
Endless possibilities ∞
Forever grateful ♾️
Love without limits ∞
Dream beyond limits ∞✨
Memories that last forever ♾️
Infinite energy ∞
For a minimalist appearance, use ∞. For a more expressive social-media style, use ♾️ or combine the symbol with hearts and other emoji.
Aesthetic Infinity Symbols
If you want decorative combinations, try these:
∞ ♡
♡ ∞ ♡
∞ ✨
∞ ☾
∞ ♥
✧ ∞ ✧
∞ ⋆
∞ + ∞
∞🖤
∞🤍
These combinations are decorative rather than official mathematical symbols.
Infinity Symbol Shortcuts and Codes
The easiest way to get the infinity symbol is simply to copy it:
∞
But if you need to type it yourself, several options are available.
| Platform | Common Method |
| Windows | Alt + 236 on a numeric keypad |
| Mac | Option + 5 |
| Microsoft Word | Type 221E, then Alt + X |
| Linux | Ctrl + Shift + U, then 221E |
| HTML | ∞ or ∞ |
| LaTeX | \infty |
| Unicode | U+221E |
Keyboard behavior can vary by operating system, keyboard layout, and application, so copy/paste or a character-insertion tool is a reliable fallback.
How to Type the Infinity Symbol on Windows

Method 1: Alt Code
If your keyboard has a numeric keypad, try:
Alt + 236
This commonly produces:
∞
Make sure Num Lock and the numeric keypad are functioning correctly.
Method 2: Microsoft Word
In Microsoft Word, type:
221E
Then press:
Alt + X
Word can convert the Unicode code into:
∞
This method is particularly useful when you are writing mathematical documents.
Method 3: Character Map
Windows also provides Character Map, where you can search for special characters and copy them.
Search for:
Infinity
Then select ∞ and copy it.
How to Type the Infinity Symbol on Mac
On many Mac keyboard layouts, the shortcut is:
Option + 5
which produces:
∞
You can also use macOS Character Viewer if the keyboard shortcut does not work with your particular layout or application.
How to Type the Infinity Symbol on iPhone and iPad
On iPhone or iPad, the easiest approach can depend on the keyboard and iOS version.
You can:
- Copy ∞ from this article.
- Paste it wherever you need it.
- Use a text replacement shortcut for frequent use.
- Use the available symbol/emoji keyboard options where supported.
For frequent use, a text replacement can be convenient. For example, you could create a shortcut such as:
inf → ∞
That lets you type a short abbreviation and have the keyboard replace it with the infinity symbol.
How to Type the Infinity Symbol on Android
Android keyboard layouts differ between devices and keyboard apps.
On keyboards such as Gboard, you can look through the symbol or mathematical-symbol sections. You can also search the emoji keyboard for infinity to find ♾️.
For frequent use, a personal dictionary shortcut can also be useful, such as:
inf → ∞
If your keyboard does not show the character, copying ∞ and pasting it is the simplest solution.
How to Insert the Infinity Symbol in Google Docs
Google Docs provides an insertion method for special characters.
Open a document and use:
Insert → Special characters
Then search for:
infinity
Select ∞ from the available characters.
Google’s documentation also notes that keyboard shortcuts can vary depending on language and keyboard configuration, so menu-based insertion is useful when a shortcut is unavailable.
How to Insert the Infinity Symbol in Microsoft Word
Microsoft Word gives you several options.
Unicode Method
Type:
221E
Then press:
Alt + X
The result should be:
∞
Insert Symbol
You can also use Word’s symbol insertion tools to locate the infinity character.
This is useful when you need to confirm the exact Unicode character rather than relying on a keyboard shortcut.
How to Insert the Infinity Symbol in Excel
In Excel, you can enter ∞ by copying and pasting it directly.
You can also use the Windows Alt-code method where supported:
Alt + 236
On a Mac, the common keyboard shortcut is:
Option + 5
For spreadsheets that need a consistent mathematical character, direct Unicode insertion is often the simplest approach.
Infinity Symbol in LaTeX
In LaTeX mathematics, the infinity symbol is written as:
\infty
For example:
$x \to \infty$
renders as:
x → ∞
LaTeX is particularly useful for mathematical documents because it provides precise control over mathematical notation.
Infinity Symbol in HTML
You can display the mathematical infinity symbol in HTML with:
∞
or:
∞
Both represent the Unicode infinity character:
∞
The decimal entity works because ∞ has Unicode code point U+221E, which corresponds to decimal 8734.
Infinity Symbol in CSS
When using CSS pseudo-elements, the Unicode code point can be represented as:
content: “\221E”;
This can be useful when a design needs the character generated through CSS rather than directly included in HTML.
Infinity Symbol Unicode Information
The standard infinity character has the following identity:
| Property | Value |
| Symbol | ∞ |
| Unicode | U+221E |
| Unicode name | INFINITY |
| HTML entity | ∞ |
| Decimal HTML | ∞ |
| LaTeX | \infty |
The separate infinity emoji character is U+267E, with emoji presentation represented by the variation sequence U+267E + U+FE0F.
Related Infinity Symbols and Characters
Not every character that looks like an infinity sign actually means infinity.
⧜ — Incomplete Infinity
⧜ is a specialized mathematical character called INCOMPLETE INFINITY.
It should not normally be substituted for the standard ∞ in ordinary writing.
⧝ — Tie Over Infinity
⧝ is another specialized mathematical symbol.
It belongs to a group of Unicode mathematical characters related to infinity notation.
⧞ — Infinity Negated With Vertical Bar
⧞ is a specialized mathematical character with a different meaning from ordinary infinity.
Ꝏ and ꝏ
Ꝏ and ꝏ are Latin letters known as capital and small OO, respectively. Their shapes can resemble an infinity sign, but they are not simply alternative Unicode versions of mathematical ∞.
Infinity Symbol vs. Proportional Symbol
A common mistake is confusing ∞ with ∝.
Infinity
∞
Means infinity or unboundedness.
Proportional To
∝
Means “is proportional to.”
For example:
y ∝ x
means that y is proportional to x.
These symbols look somewhat different and have completely different mathematical purposes.
Infinity Symbol vs. Repeat Symbols
Infinity and repetition can sometimes communicate similar ideas, but they are not the same.
∞ = infinity or endlessness
🔁 = repeat
🔄 = a circular or repeated process
Use ∞ when the intended idea is limitless or endless rather than simply repeating an action.
Infinity Symbol vs. Forever Symbol
There is no single universally standardized “forever symbol” that replaces infinity in every context.
People often use:
∞
as a symbolic representation of forever because its continuous loop has no visible endpoint.
Therefore:
Infinity symbol = ∞
while:
Forever is generally an idea or concept that may be represented symbolically by ∞.
Infinity Symbol Meaning in Different Contexts
The same symbol can communicate different ideas depending on where it appears.
| Context | Common Meaning |
| Mathematics | Unboundedness/infinity |
| Calculus | Infinite limits or behavior |
| Love | Eternal or everlasting love |
| Friendship | Lasting connection |
| Tattoos | Eternity, continuity, remembrance |
| Jewelry | Lasting bond or commitment |
| Social media | Forever or limitless possibilities |
| Design | Continuity or endless movement |
| Philosophy | Eternity or the infinite |
| Usernames | Limitless or distinctive identity |
These are common interpretations, not universal definitions.
Infinity Symbol in Philosophy and Spirituality
Infinity has been discussed as a philosophical concept for centuries. Philosophical traditions have explored questions about whether infinity is actual, potential, mathematical, physical, or conceptual.
The symbol ∞ is sometimes used outside mathematics to represent:
- Eternity
- Infinite existence
- Cycles
- Continuity
- Limitless consciousness
- Spiritual connection
These meanings are symbolic and can vary significantly between individuals and traditions.
How to Choose the Right Infinity Symbol

If you are unsure which character to use, this simple guide can help:
For mathematics:
Use ∞
For a school assignment:
Use ∞
For scientific or technical writing:
Use ∞
For a social-media caption:
Use ∞ or ♾️
For an aesthetic username:
Try ∞, if the platform supports it.
For a tattoo:
Use ∞ as the basic design and customize it if desired.
For romantic messages:
Use ∞ ♥, ∞ ♡, or You + Me = ∞
For HTML:
Use ∞
For LaTeX:
Use \infty
Frequently Asked Questions About Infinity Symbols
What is the main infinity symbol?
The standard mathematical infinity symbol is ∞, Unicode U+221E.
Can I copy and paste an infinity symbol?
Yes. Simply copy:
∞
For an emoji-style version, copy:
♾️
What does ∞ mean?
It represents infinity, unboundedness, or something without a finite limit. In everyday symbolic use, it can mean forever or eternity.
What does ♾️ mean?
♾️ is the infinity emoji and is commonly used to represent infinity, endlessness, or permanence. Unicode lists U+267E as the infinity emoji character.
Is ∞ a number?
In ordinary mathematics, infinity should not be treated as a normal finite number. It is commonly used to describe unbounded behavior or infinite processes.
Why is the infinity symbol sideways?
The sideways figure-eight shape is a continuous loop, making it visually appropriate for the idea of something without an endpoint. However, the precise reason John Wallis selected this form in 1655 is uncertain.
Who invented the infinity symbol?
English mathematician John Wallis introduced the modern infinity symbol for mathematical use in 1655.
What is another name for the infinity symbol?
It is commonly called the lemniscate because of its association with the sideways-loop shape.
What is the Unicode for ∞?
The Unicode code point is:
U+221E
What is the Unicode for ♾️?
The underlying Unicode character is:
U+267E
The emoji-style presentation uses a variation selector as well.
What is the keyboard shortcut for infinity on Mac?
On many Mac keyboard layouts, use:
Option + 5
What is the keyboard shortcut for infinity on Windows?
A commonly supported numeric-keypad method is:
Alt + 236
How do I type infinity in LaTeX?
Use:
\infty
inside math mode.
How do I write infinity in HTML?
Use:
∞
or:
∞
Is ♾️ the same as ∞?
No. They are visually related but have different Unicode identities and are commonly used in different contexts.
Final Thoughts
The infinity symbol ∞ is both a precise mathematical character and a widely recognized visual symbol for endlessness. In mathematics, it helps describe unbounded quantities and infinite processes. Outside mathematics, it can represent forever, eternal love, continuity, limitless possibilities, and lasting connections.
For the standard symbol, use ∞. For an emoji-style appearance, use ♾️. If you need specialized mathematical notation, characters such as ⧜, ⧝, and ⧞ have more specific purposes and should not automatically be treated as replacements for ∞.
Whether you need an infinity symbol for copy and paste, mathematics, a keyboard shortcut, Google Docs, Word, Excel, HTML, LaTeX, a username, social media, a tattoo, jewelry, or a romantic message, the classic ∞ is the most versatile choice.
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Hi, I’m Charlotte Hayes. I love writing about the newest English slang, pop culture phrases, and digital communication. I spend my time exploring how language evolves across social media, gaming, and everyday conversations. I enjoy sharing easy-to-understand guides that help learners keep up with modern English. My goal is to make every article useful, accurate, and enjoyable for readers around the world.
Books:
- Everyday Slang Dictionary
- Fluent Through Informal English
