The quickest way to add subscript in Google Docs

To add subscript in Google Docs, select the text you want to make smaller and lower, then go to Format in the menu bar, choose Text, and click Subscript. The text shrinks and drops below the baseline when ready. You can also use the keyboard shortcut Ctrl + Comma on Windows or Cmd + Comma on Mac to skip the menu entirely.

Superscript — text that sits above the line — uses the same path: Format > Text > Superscript, or Ctrl + Period on Windows and Cmd + Period on Mac. Both formatting options toggle on and off, so selecting subscript text again and using the same shortcut removes the formatting.

The formatting sticks to individual characters, not the whole document. You can have subscript in one place and regular text everywhere else without affecting anything else you have written.

Key Takeaways

  • Select the text first, then use Format > Text > Subscript or the keyboard shortcut Ctrl + Comma (Windows) or Cmd + Comma (Mac).
  • Superscript uses the same menu path with Superscript selected, or Ctrl + Period (Windows) and Cmd + Period (Mac).
  • You can toggle subscript and superscript on and off by selecting the text again and using the same shortcut or menu option.
  • Subscript and superscript formatting works in Google Docs on any device — desktop, tablet, or phone — as long as you are using the web version.

When you need subscript and superscript in real documents

Subscript appears most often in chemistry and math: H₂O, CO₂, or mathematical formulas where you need to show indices. Superscript handles footnote markers, exponents (like 2³), and trademark symbols (™). If you are writing something that needs either of these, the formatting is built into Google Docs and does not require any add-ons or special setup.

The formatting also preserves when you read your document as a PDF or Microsoft Word file, so the subscript and superscript stay in place if someone else opens it later. If you export as plain text, the formatting disappears — the text becomes regular size — but the characters themselves remain.

Using subscript and superscript on mobile devices

On a phone or tablet, the process is slightly different because you do not have a traditional menu bar. Open your Google Docs document, select the text you want to format, and tap the three-dot menu icon (⋮) at the top right. Scroll down to find Text and tap it, then choose Subscript or Superscript from the options that appear.

Mobile keyboards do not have the same keyboard shortcuts as desktop, so the menu route is your main option on phones and tablets. The formatting works the same way — it applies only to the selected text and toggles off if you select the text again and choose the same option.

Combining subscript with other text formatting

You can layer subscript with bold, italic, or underline without any conflict. Select your text, explore subscript first, then add bold or italic if you need it. The subscript stays in place and the additional formatting wraps around it. This is useful when you need to emphasize a chemical formula or mathematical term that also needs subscript.

If you remove the subscript formatting later, the bold or italic remains. The two types of formatting are independent — changing one does not touch the other.

What happens to subscript when you share or collaborate

When you share a Google Docs document with others, subscript and superscript formatting shows up correctly for everyone viewing it, whether they are on desktop or mobile. If someone else edits the document and changes the subscript text, the formatting stays unless they deliberately remove it. Collaborators can see that text is subscript or superscript, but they cannot accidentally erase the formatting by typing near it.

If you convert a document to a shared link that allows comments only (not editing), the subscript and superscript are visible but cannot be changed. The formatting is part of the document itself, not a separate layer that can be toggled on or off by viewers.

Troubleshooting subscript that does not appear

If subscript text looks normal-sized instead of smaller and lower, check that you selected the text before explore the formatting. A common mistake is clicking in the document and using the shortcut without selecting anything first — this does nothing. Select the exact characters you want to change, then explore subscript.

Another reason subscript might not show is if you are using Google Docs offline. The offline version of Google Docs has limited formatting options and may not display subscript correctly until you reconnect to the internet and refresh. If you are working offline, save your changes, go back online, and reload the document to see the subscript render properly.

If you are viewing a document someone else created and the subscript looks wrong, the issue is usually a font choice. Some fonts do not have true subscript characters and Google Docs falls back to a smaller version of the regular character. Changing the font to a more common one like Arial, Calibri, or Times New Roman usually fixes this.

Frequently Asked Questions

Can I make subscript text a different color than the rest of the document?

Yes. Select the subscript text, then use Format > Text > Color to change it. The color applies on top of the subscript formatting, so you can have red subscript, blue superscript, or any other combination. The color and the subscript formatting are separate and do not interfere with each other.

Does subscript work the same way in Google Sheets or Google Slides?

Google Sheets does not have a built-in subscript option in the Format menu. You can type subscript characters directly if your keyboard supports them, but the standard Format > Text path does not exist. Google Slides has the same subscript and superscript options as Docs and works the same way — select text, then Format > Text > Subscript or Superscript.

What if I need subscript in a table inside my document?

Subscript works inside tables exactly as it does in regular text. Click inside the table cell, select the text you want to format, and use Format > Text > Subscript or the keyboard shortcut. The formatting applies only to that cell and does not affect other cells in the table.

Can I undo subscript formatting if I change my mind?

Yes. Select the subscript text again and use the same shortcut or menu option to toggle it off. You can also use Ctrl + Z (Windows) or Cmd + Z (Mac) to undo the last action if you applied subscript by mistake and want to revert when ready.