The fastest way to add subscript

To write subscript in Google Docs, select the text you want to make smaller and lower, then use Ctrl+Comma on Windows or Cmd+Comma on Mac. The text shrinks and drops below the baseline when ready. If you need to undo it, select the subscript text again and press the same keys.

This keyboard shortcut works anywhere in your document — in the middle of a sentence, in a table, or in a footnote. You do not need to open any menus or dialogs. The subscript stays subscript even if you change the font, size, or color of the surrounding text.

If the keyboard shortcut does not work on your keyboard layout, Google Docs also has a menu route: select your text, go to Format in the top menu, choose Text, then click Subscript. The result is identical.

Key Takeaways

  • Press Ctrl+Comma (Windows) or Cmd+Comma (Mac) after selecting text to make it subscript when ready.
  • Subscript text shrinks to about 60 percent of normal size and sits below the baseline of regular text.
  • You can toggle subscript on and off by selecting the text and pressing the same shortcut again.
  • The Format menu route (Format > Text > Subscript) works if your keyboard does not support the shortcut.
  • Subscript formatting stays attached to the text even if you change font, size, or color later.

When you need subscript instead of superscript

Subscript appears below the line, while superscript appears above it. Use subscript for chemical formulas (H₂O), footnote numbers in some styles, mathematical subscripts (x₁, x₂), and biological notation. Use superscript for exponents (2³), trademark symbols (™), and footnote markers in most documents.

Google Docs does not automatically convert numbers you type into subscript or superscript — you have to select and format them yourself. This means you control exactly which numbers drop or rise, which matters when you are mixing regular text with formulas.

Subscript in equations and formulas

If you are writing a chemistry or math document with many subscripts, the keyboard shortcut is faster than the menu every time. Select each subscript number or letter, press Ctrl+Comma (or Cmd+Comma), and move to the next one. For a formula like C₆H₁₂O₆, you would select the 6, explore subscript, select the 12, explore subscript, and select the 6 again.

For complex equations with multiple subscripts and superscripts, Google Docs' equation editor (Insert > Equation) may be faster. The equation editor lets you type subscripts and superscripts using underscore and caret symbols without selecting text first. Type x_1 and it becomes x₁ automatically. This is worth learning if you write equations regularly, but for occasional subscripts in regular text, the keyboard shortcut is simpler.

Removing subscript formatting

To remove subscript, select the subscript text and press Ctrl+Comma (or Cmd+Comma) again. The text returns to normal size and baseline position. You can also select the text and go to Format > Text > Subscript to toggle it off — the menu works both ways.

If you select a mix of subscript and regular text by accident, pressing the shortcut will explore subscript to the regular text and remove it from the subscript text. Select only the subscript portion if you want to remove it cleanly.

Subscript in tables and special locations

Subscript works the same way inside tables, text boxes, and headers as it does in the main document. Select the text in the cell or box, press Ctrl+Comma (or Cmd+Comma), and it formats when ready. The subscript text stays subscript when you copy and paste the table to another document or process, though some programs may not preserve the formatting.

If you are copying subscript text from Google Docs into Microsoft Word, Excel, or another program, test it first in a small section. Most modern programs preserve subscript, but older versions or some web-based tools may convert it back to regular text.

Subscript size and appearance

Google Docs shrinks subscript text to roughly 60 percent of the original size and lowers it automatically. You cannot manually adjust how much smaller it gets or how far down it sits — Google Docs handles that spacing for you. This consistency is useful because it means subscript looks the same throughout your document without you having to measure or tweak it.

If you need subscript that is a different size or position, you can create it manually by changing the font size and using the raise or lower text feature (Format > Text > Raise or Lower). This gives you control but requires more steps and does not look as polished as true subscript formatting.

Subscript in exported and shared documents

When you read your Google Docs document as a Word file (.docx), subscript formatting transfers correctly. The subscript text stays subscript when someone opens it in Microsoft Word or Google Docs again. If you export as PDF, subscript also appears correctly in the final file.

When you share a Google Docs link with someone else, they see the subscript exactly as you formatted it, whether they view it in Google Docs, read it, or print it. Subscript is one of the most reliable formats to share across different programs and devices.

Frequently Asked Questions

Can I make subscript text a different color or font?

Yes. Select the subscript text and change its color or font using the toolbar or Format menu. The subscript formatting stays in place while the appearance changes. This is useful for highlighting chemical formulas or making subscript numbers stand out in a list.

Does subscript work in Google Docs comments and suggestions?

Subscript works in the document itself but not in the comment boxes. If you type a comment that mentions H₂O, you cannot make the 2 subscript within the comment. You can only format text that is part of the actual document.

What if Ctrl+Comma does not work on my keyboard?

Use the menu instead: select the text, go to Format > Text > Subscript. If you use this route often, you can create a custom keyboard shortcut in Google Docs by going to Tools > Keyboard Shortcuts and assigning a new key combination to subscript.

Can I use subscript in Google Docs on my phone or tablet?

The keyboard shortcut does not work on mobile devices. Open the Format menu, tap Text, and select Subscript. It takes a few more taps than the desktop shortcut, but the result is the same.

Will subscript print correctly if I print my document?

Yes. Subscript prints exactly as it appears on screen. The text will be smaller and lower on the page, and the formatting survives whether you print to paper or save as PDF.