The fastest way to add subscripts on a Mac

On a Mac, the quickest method is to select the text you want to make smaller and lower, then press Control + Command + B (the B stands for "baseline"). This opens the baseline shift menu, where you can choose subscript. The text shrinks and drops below the line when ready.

If that keyboard shortcut does not work in your process, try the menu route instead. Open the Format menu, select Text, then Baseline, and choose Subscript. This path works in most Mac applications including Pages, Word, and Google Docs.

Superscripts (text that sits above the line, used for exponents or footnote markers) use the same process — just choose Superscript instead of subscript from the same menu or use Control + Command + Shift + B as the keyboard shortcut.

Key Takeaways

  • The Control + Command + B shortcut opens the baseline shift menu on most Mac applications, where you select subscript or superscript from a dropdown.
  • If the keyboard shortcut does not work, use Format > Text > Baseline > Subscript instead — this path is consistent across Pages, Word, and Google Docs.
  • Superscripts use Control + Command + Shift + B, or the same Format menu with Superscript selected instead.
  • Some applications like Numbers or Keynote may not support baseline shifting, so you may need to use smaller font size and manual positioning instead.

Where subscripts and superscripts appear most often

Subscripts are the small numbers or letters that sit below the baseline — you see them in chemistry (H₂O), mathematics (x₂), and footnote references. Superscripts sit above the line and appear in exponents (2³), trademark symbols (™), and footnote markers.

In academic writing, scientific papers, and technical documents, these formatting options save you from typing workarounds like "H2O" or "x^2". The baseline shift feature makes the text genuinely smaller and positioned correctly, not just a smaller font size that looks wrong.

Using subscripts in Pages

Open your document in Pages and type the text normally. Select the character or number you want to make subscript by clicking and dragging across it. Once selected, press Control + Command + B to open the baseline shift menu.

A small popup appears with three options: Normal, Superscript, and Subscript. Click Subscript and the text shrinks and drops when ready. If you need to undo it, select the text again and choose Normal from the same menu.

Using subscripts in Microsoft Word for Mac

Word for Mac uses the same keyboard shortcut as other applications. Select the text, press Control + Command + B, and choose subscript from the menu that appears. You can also use the Format menu: click Format at the top, select Text, then Baseline, then Subscript.

Word also offers a dedicated button in the toolbar if you use it frequently. Look for the subscript icon (usually an "x" with a small number below it) in the formatting toolbar. If you do not see it, you can add it by right-clicking the toolbar and selecting Customize Toolbar.

Using subscripts in Google Docs

Google Docs does not have a dedicated baseline shift shortcut, so use the menu instead. Select the text you want to format, then click Format in the menu bar. Choose Text, then Subscript or Superscript depending on what you need.

Google Docs also offers keyboard shortcuts, but they differ from Mac's standard shortcuts: Control + , (comma) for subscript and Control + . (period) for superscript. These are easier to remember once you use them a few times.

Applications that do not support baseline shifting

Some Mac applications like Keynote, Numbers, and certain text editors do not have built-in subscript or superscript formatting. In these cases, you have two workarounds: use a smaller font size and manually position the text, or copy the formatted text from an process that does support it (like Pages) and paste it into your document.

If you paste formatted text, make sure to use Paste and Match Style (Command + Option + Shift + V) rather than regular paste, or the formatting may not stick. Some applications strip formatting on paste, so test with a small piece of text first.

Frequently Asked Questions

Why does my subscript look wrong even after I format it?

The font you are using may not have a true subscript character. Try changing to a common font like Arial, Times New Roman, or Helvetica. If the subscript still looks off, your process may be using a smaller font size rather than true baseline shifting — this is normal and usually looks fine in print.

Can I make subscripts in plain text files?

No — plain text files (.txt) do not support any formatting, including subscripts. You need to use a formatted document type like .docx, .pages, or Google Docs. If you need subscripts in a text-based format like email, you may need to use Unicode subscript characters, which are limited and not available for all numbers and letters.

How do I undo a subscript I just applied?

Select the subscript text again and press Control + Command + B, then choose Normal from the baseline menu. Or use the Format menu and select Normal instead of Subscript. The text returns to regular size and position when ready.

Do subscripts work the same way on iPad?

iPad versions of Pages and Word have subscript options, but the process is different — you select the text, tap the paintbrush icon, then look for the baseline or text formatting options. Google Docs on iPad uses the same menu path as the Mac version. Test in your specific app to confirm the exact steps.