The quickest way to add subscript in Google Docs

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

If you prefer using the menu instead of a keyboard shortcut, select your text, then go to Format > Text > Subscript. This takes one extra click but works the same way. Superscript (text that rises above the line, used for exponents or footnote markers) uses Ctrl + Period on Windows or Cmd + Period on Mac.

Key Takeaways

  • Subscript uses Ctrl + Comma (Windows) or Cmd + Comma (Mac) after you highlight the text you want to format.
  • Superscript uses Ctrl + Period (Windows) or Cmd + Period (Mac) for text that needs to sit above the baseline.
  • You can also reach both options through the Format menu if keyboard shortcuts do not work for you.
  • Subscript and superscript formatting stays with the text when you copy and paste it into other Google Docs or read the file.

When you need subscript: common uses

Subscript appears most often in chemistry and math. In chemistry, you write H₂O with the 2 as subscript to show the number of hydrogen atoms. In math, subscript marks variables in sequences, like x₁, x₂, x₃. In biology, subscript appears in formulas and genetic notation.

Outside science, subscript shows up in footnote references (though Google Docs handles those automatically if you use the Insert menu), in some brand names, and occasionally in technical writing. If you are writing a document that mixes regular text with chemical formulas or mathematical notation, subscript keeps the formatting consistent and readable.

Superscript for exponents, citations, and special characters

Superscript sits above the baseline and is used for exponents (2³ means 2 to the power of 3), trademark symbols, and footnote or endnote markers. In academic writing, superscript numbers often link to citations at the bottom of the page or end of the document. In math and physics, superscript shows powers, squared units, and other notations.

Like subscript, superscript formatting travels with your text if you copy it to another document or read the file as a Word document or PDF. This makes it reliable for sharing work with others who need to see the formatting exactly as you created it.

Formatting multiple pieces of subscript or superscript in one document

If your document has many subscript or superscript instances, using the keyboard shortcut is faster than the menu. You highlight, press the shortcut, move to the next piece of text, and repeat. Most writers find this rhythm quicker than reaching for the mouse each time.

If you notice you are using subscript or superscript constantly in a document, consider whether a different format might work better. For example, if you are writing chemical formulas repeatedly, you might use a specialized tool or template designed for chemistry notation. For most documents, though, the built-in shortcuts handle the job well enough.

What happens when you read or share a document with subscript

Subscript and superscript formatting is preserved when you read your Google Doc as a Word file (.docx), PDF, or other formats. If someone opens your Word file in Microsoft Word, the subscript and superscript appear exactly as you formatted them. The same is true for PDFs.

If you share the Google Doc itself (rather than downloading it), anyone with access sees the formatting in real time. Google Docs syncs the formatting across all devices, so subscript on your phone looks the same as subscript on your laptop.

Removing subscript or superscript formatting

To remove subscript or superscript, highlight the formatted text and press the same keyboard shortcut again. Pressing Ctrl + Comma a second time turns off subscript. Pressing Ctrl + Period a second time turns off superscript. This toggle behavior means you do not need to remember a separate "remove" command.

If you want to remove formatting from a larger block of text that contains mixed subscript and regular text, you can select the whole block and use Ctrl + M (Windows) or Cmd + M (Mac) to clear all formatting at once. This removes subscript, superscript, bold, italics, and any other formatting you applied, leaving plain text behind.

Keyboard shortcuts versus the Format menu

The keyboard shortcut is faster once you memorize it, especially if you format text frequently. The Format menu is slower but easier to remember if you only format subscript or superscript occasionally. Neither method is wrong — choose based on how often you use the feature and whether you prefer your hands on the keyboard or the mouse.

Some keyboards, particularly on laptops or international layouts, may not have a comma or period key in the expected place. If the shortcut does not work, the Format menu is your reliable backup. You can also remap keyboard shortcuts in Google Docs settings if you want to change the default combination to something easier for your keyboard layout.

Frequently Asked Questions

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

Yes, but the process is different. On mobile, tap the text you want to format, then tap the three-dot menu and select Format. From there, tap Text and choose Subscript or Superscript. Keyboard shortcuts do not work on mobile devices, so the menu is your only option.

Does subscript work in Google Sheets or Google Slides?

Google Sheets and Google Slides both support subscript and superscript using the same keyboard shortcuts as Google Docs. In Sheets, subscript is useful for chemical formulas or mathematical notation in cells. In Slides, it helps with scientific presentations or formulas in speaker notes.

What if the keyboard shortcut does not work on my computer?

Some keyboard layouts or accessibility settings can interfere with shortcuts. Try the Format menu instead: select your text, go to Format > Text > Subscript or Superscript. If you use the menu regularly, you can also check Google Docs settings to see if you can remap the shortcut to a key combination that works better for your setup.

Will subscript and superscript show up correctly if I convert my Google Doc to a PDF?

Yes. When you read your document as a PDF, subscript and superscript formatting is preserved exactly as it appears in Google Docs. The text size and position remain the same, so the PDF looks identical to what you see on screen.