Increase the font size on your computer Open Gmail. Click Compose, located in the upper-left corner of the screen, underneath the Gmail logo. Open formatting options (A). Click the Size option (TT).

How to increase the default font size If you like to write emails in large or huge text (the two sizes larger than Gmail's default normal), make the change in your settings.

If you're having difficulty reading the text on your Mac, you can use the macOS Monterey display scaling to make your text appear larger.

If you're having trouble reading text on your Apple Watch, try changing the font size. Here's how you can do that in two different ways.