Subscript Two symbol
Type :sub2: · Numbers
Unicode name Subscript Two · Superscripts and Subscripts block · added in Unicode 1.1, 1993
What ₂ is for
The workhorse of the set. H₂O and CO₂ are the two formulas that everyone writes at some point, and both need this exact character rather than a plain 2.
How to type ₂
The shortcuts below are the built-in routes. With
Emoji Anywhere
installed you can skip all of them and type
:sub2: in any text field instead, which
is the same on every platform.
macOS
No direct shortcut. Use Edit → Emoji & Symbols, or switch to the Unicode Hex
Input source and type 2082 with Option
held.
Windows
No Alt code. In Word, type 2082 then press Alt +
X. Elsewhere use the emoji panel with Win + Period, or Character Map.
Shortcodes
:sub2: :subscript_two: On the web
HTML ₂
Unicode U+2082
JavaScript '\u{2082}'
CSS "\2082"
Python '\u2082'
URL %E2%82%82
What ₂ gets mistaken for
The raised twin, meaning squared. Getting these two the wrong way round turns water into something that does not exist.
More from numbers
:sup7: ⁸ :sup8: ⁹ :sup9: ⁿ :supn: ₀ :sub0: ₁ :sub1: ₃ :sub3: ₄ :sub4: ₅ :sub5: ₆ :sub6: ₇ :sub7: ₈ :sub8: Every symbol and kaomoji is in the full gallery .
Tired of copying ₂ from pages like this one?
That is exactly what the extension removes. Here is the whole interaction, in every text field you already use:
You type
You get
Your keyboard already knows what you mean
Free, 290 KB, no account. Two letters from now you will never open an emoji panel again.