The infinity sign (∞) is one of those symbols that is not displayed on the standard Android keyboard, but may be needed in the most unexpected situations. Whether you want to decorate your in-game nickname, add a math symbol to your notes, or simply surprise your friends in chat, the lack of a “∞” button on the screen shouldn’t be an obstacle. Fortunately, there is at least five working methods insert this character on any smartphone running Android, regardless of the operating system version or device model.
In this article we will look at all the available methods - from built-in keyboard functions to using third-party applications and even manual input via Unicode. You will learn how to make an infinity sign as quickly as possible (in 2 clicks) and how to automate the process so that the symbol is always at hand. We will also tell you why sometimes ∞ is displayed as a square or a question mark, and how to fix it.
1. Method: standard Gboard keyboard (Google)
If your Android smartphone has a keyboard Gboard (by default it is preinstalled on most devices), then the infinity sign can be inserted without additional applications. Here's how to do it:
- 📱 Open any text input field (for example, a message in WhatsApp or a note in Google Keep).
- 🔤 Click on the input field so that the keyboard appears Gboard.
- 🔢 Switch to the numeric keypad by clicking button
?123. - 🔍 Hold your finger on the button
0(zero) - after a second a pop-up menu will appear with additional symbols, including ∞. - ✅ Select the infinity sign and it will appear in the text field.
This method works on all versions of Gboard, including old ones (starting from Android 5.0). If you have a different keyboard (for example, Samsung Keyboard or SwiftKey), go to the next method - the universal algorithm is described there.
If the ∞ sign does not appear when holding 0, refresh Gboard to Google Play. In older versions, the symbol could be hidden.
2. Method: copying from the clipboard
The simplest, but no less effective method is to copy the infinity sign from this article and paste it anywhere. Here is the symbol to copy:
∞
How it works:
- Tap and hold the symbol ∞ above, then select “Copy” from the menu that appears.
- Go to the desired application (for example, VK, Telegram or Instagram*).
- Press and hold the input field, then select “Paste.”
The advantage of this method is that it works on any deviceseven if the keyboard does not support entering special characters. Minus - you have to. return to this page every time you need ∞. Solution: save the symbol in notes or clipboard (for example, through the app Clipboard Manager).
3 Method: Unicode input (for advanced users)
The infinity sign has its own unique code in the Unicode table - U+221E. If your keyboard supports Unicode input (this works in Gboard, Samsung Keyboard and some others), you can insert the symbol like this:
- Open the text input field.
- Enter the combination
\u221E(without spaces). - After entering, press
Space—the character will automatically be converted to ∞.
This method is especially useful if you need to insert ∞ in app code or system settings, where copying may not work. Please note: on some keyboards (for example, in SwiftKey) Unicode input disabled by default —in this case, use other methods.
Why does Unicode not work?
Some keyboards (for example, SwiftKey or AI.type) block automatic conversion of Unicode codes In this case. try entering ∞ (HTML infinity code) - it will work in web forms and some applications.
4. Method: special applications for symbols
If you often need non-standard characters (not only ∞, but also ♔, ☯, ⚡ and others), it makes sense to install a specialized one application. Here are the top 3 proven options:
| Application | Rating on Google Play | Features | Link |
|---|---|---|---|
| Symbol Keyboard | 4.6 ⭐ | Adds a panel with 3000+ characters, including ∞, mathematical and emoji | Available in Google Play |
| Unicode Pad | 4.4 ⭐ | Allows you to search for symbols by name (for example, "infinity") | Available in Google Play |
| Cool Symbols | 4.3 ⭐ | Copy symbols in one click, there are categories (mathematics, arrows and etc.) | Available in Google Play |
How to use these applications:
- 📥 Install one of the applications from the link above.
- 🔍 Find the infinity sign through a search or in the “Math Symbols” category.
- 📋 Click on ∞ to copy it to the clipboard.
- 📤 Paste the symbol in the desired location (as in method number 2).
The advantage of this method is that you get access not only to ∞, but also to thousands of other symbols that may be useful in the future. For example, Symbol Keyboard there are even Android system icons (⚙️, 📱, 🔋) that cannot be inserted using standard methods.
Make sure that the application has a rating above 4.0 ⭐
Read reviews (especially negative ones)
Check the date of the last update (relevance)
Install only from the official one Google Play
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5. Method: alternative keyboards (Samsung, SwiftKey and others)
If you are using a keyboard other than Gboard(for example, Samsung Keyboard, SwiftKey or Fleksy), the input algorithm ∞ may differ. Here are the instructions for popular options:
Samsung Keyboard (on phones). Samsung)
- 🔢 Switch to the numeric keypad (button
?123). - 🔍 Press and hold the button
=(equal) - ∞ will appear in the menu.
SwiftKey (Microsoft)
- 🔢 Switch to digital mode (
?123). - 🔍 Click on the button
\<(backslash) - additional symbols are hidden there, including infinity.
Fleksy
- 🔍 Enter the word “infinity” in the keyboard search line - the symbol ∞ will appear in the tooltips.
If your keyboard not in the list, try holding down different buttons in digital mode (0, =, \, /) - often ∞ is hidden there. Also check your keyboard settings: sometimes additional characters need enable manually (for example, in SwiftKey this is done in the "Layout and Keys" section).
On keyboards from Chinese manufacturers (Xiaomi, Huawei, Oppo), the ∞ sign may be in the “Smiles” or “Special Characters” section.
6. Method: manual input via HTML or LaTeX (for technical tasks)
If you need to insert ∞ in web page code, LaTeX document or other technical environment, use the following codes:
- 🌐 HTML: enter
∞or∞—after processing by the browser, the character is converted to ∞. - 📄 LaTeX: use the command
\infty(for example,$x \to \infty$for mathematical formulas). - 💻 Unicode in code: in most programming languages (Python, Java, C++) you can insert ∞ directly or through
\u221E.
Example of use in HTML:
Infinity symbol: ∞This method will be useful for developers, technical students or those who work with Markdown-markup (for example, in GitHub or Notion). In regular chats and social networks, HTML codes will not work - there it is better to use copying or Unicode input.
What to do if the infinity sign is displayed as □ or ?
Sometimes instead of ∞ you see a square (□), a question mark (?) or other garbage. This means that font or application does not support Unicode. Here's how to fix:
- 🔄 Change the font: in the phone settings (
Settings → Display → Font), select a standard font (for example, Roboto or Arial). - 📱 Update the application: if ∞ is not displayed in VK or Telegram, check for updates in Google Play.
- 📋 Copy from another source: sometimes the symbol “breaks” when copied from certain sites. Try taking ∞ from this article or from Google Docs.
If the problem persists, perhaps the problem is text encodingFor example, SMS messages sometimes use outdated encoding GSM 7-bit. which does not support ∞. In this case, replace the symbol with the word “infinity” or use the 🔄 (cycling arrow) emoji as an alternative.
To check if your phone supports Unicode, send yourself a message with the symbol ∞. it is displayed correctly - the problem is in a specific application, not in the system. Telegram message with the symbol ∞. If it is displayed correctly, the problem is in a specific application, not in the system.
FAQ: answers to frequently asked questions
❓ Is it possible to make an infinity sign on an Android keyboard without the Internet?
Yes, all the methods from this article (except installing applications) work offline. For example, you can copy ∞ from notes or enter it via Unicode (\u221E).
❓ Why is there no infinity sign on the keyboard on my Xiaomi?
On smartphones Xiaomi, Redmi i POCO there is a default keyboard Mi Keyboardwhere ∞ is hidden in additional symbols. Try holding 0 or =. If this does not help, install Gboard from Google Play.
❓ How to insert ∞ into a nickname in a game (for example, in Free Fire or PUBG)?
Copy the ∞ symbol from this article, then paste it into the nickname change field. Please note that some games prohibit special characters - in this case, use alternatives like 8 (lying infinity) or oo.
❓ Is it possible to make a hotkey for ∞ on Android?
Yes, using the application Text Shortcuts (or the built-in "Text Replacements" function in GboardCreate a rule: for example, enter ;;inf, and the system). will automatically replace it with ∞.
❓ Why does ∞ turn into another symbol in some applications?
This happens due to limitations of the application. For example, Instagram* and Twitter sometimes replace rare symbols with similar ones. Solution: use. ∞ in the form of a picture (screenshot of the symbol) or find an alternative sign.