How do I add a custom font size for a Google Spreadsheet I have? There are some defaults like 14pt, 18pt, 24pt and 36pt, but I would like to have a font size like 30pt, is it possible?
There's no way to do that in Google Spreadsheets, only the font sizes you already mentioned. There is however the possibility to do that via Google Apps Script. The following piece of code will create a menu option (upon opening):
You can create your own script but adding this one to your own sheet:
In the example file I created, you can play with it: fontSize