Setting a Default Font and Size in Google Docs

To set your preferred font and size default for all of your new Google Docs:

1. Open or create a Google Doc

2. Select some text - even just one word - in your choice of font and size of your preference

3. Click the "Format" menu > Paragraph styles > Normal text > Update 'Normal text' to match:

4. With the text still selected, click the "Format" menu again > Paragraph styles > Save as my default styles:

Once the default font has been set, all new documents or presentations that you create will use this font until you change the default option again.